I cut my guide bosses down on my vortecs with the comp cams tool, installed Z28 springs without the dampers, and have been driving it 8+ years with zero problems.
Dude! Why do you not have more VIEWS! This is an amazing video! You have a good clear way of explaining all of this and for the FIRST time, I understand lift - You have a new sub - I hope you can grow your channel!
Thanks man I really appreciate that! I have alot of cool projects on the go and finally decided to start filming some of it. There is alot of weird info out there so I'm trying to make videos that I wish i had a few years back when I needed info. Please share my videos and hit me up if you need any help or parts for your vortec projects!
@@cuttersperformance Thank you for sharing!!! I just did my first top end rebuilt on my 1970 chevelle crewcab. I used Vortec heads on the 307 bottom end. I have a 350 in the garage and I wanting to use my vortec heads on them with a nice cam - but I don't want to machine the hell out of them. With this information, I can get springs and put a nice cam in it and really go to town! Keep up the content - you actually explain things so that EVERYONE can understand. I am learning all of this and have been lost. There is a guy locally who I met on the SBC board on Facebook and he has been an awesome GURU for me as well! You are right there is not only so much misinformation but also nasty people who get hateful in a second if you don't grasp the concept they are poorly explaining. So, I tip my hat to you - and I will share your content with everyone I can.
I'm going to totally agree with this statement. And I have over 20 years experience building high performance engines, and so I also know what to look for when people make videos about a specific subject. I'm also the type that will call out somebody when they're just trying to get views but don't really know what they're talkin about. While there would be a couple of things I would add, this video is quite good and quite informative, and also explaining things in a clear way for others to understand. I can only imagine who gave it thumbs down. But then again it seems like every good video has thumbs down but nobody comments on why. Anyways this is a very misunderstood subject and very rarely do I see people cover it this clearly. I'm definitely impressed.
I agree that this is an excellent vid. The reason there aren't more views is because these engines are obsolete. LS is the budget build of choice now and the next generation LT has been out for quite awhile now. The LT will replace the LS and will only gain momentum in the coming years.
@@michaeldose2041 I understand what you are saying , but I'm soon to be 72 and I like the Vortec so I don't need all that wiring .I'll run a carb and hei , suits me fine .I don't race anymore .
You can get .100 longer stainless valves cheap from erson, with longer hardened pushrods also to keep geometry correct . This avoids what may be expensive machine work to cut the guides down ! Hope this helps.
Thank you for taking time to record this video. I finally understand how to determine maximum valve lift for my ZZ3 heads. You explained it in a way that makes sense.
I use the screw in studs too. A lot of the circle track rules say ya cant but those incognito ones have never been seen. I also break-in my motors on a run in stand before they go to the dyno with either a less than 80lb seat pressure spring or remove the inner spring.
@@cuttersperformanceI would love a PCP key chain!!! I have suggested (on many, many forums) to people who are doing vortec heads that they should look up PISS-CUTTER PERFORMANCE on RUclips, now you changed your name... And can we get some new vids???
One thing to note, I did not see you cover in either video. I watched two of your video's on this topic you put out. You can run harden valve lash caps to get the needed stem height for the self aligning rocker arms. Just something to add I know a lot of people shy away from running them but they do work, also yes I know I am commenting on a 3 year old video just figured I would add this for those that did not know.
I just pulled my pressed in studs on 906 vortec heads. I used anti seize grease to lubricate the nut on the stud being pulled . if the nut starts getting hot move to the next stud and let that one cool off. It looked like most of the studs are stake and were difficult to pull and a couple came out easy. do not use a cheap nut use a valve stud nut which is hardened.
I've been looking everywhere for # 99095-1 keepers and they are OOS everywhere. I can find Howards 93010 keepers. They are a forged version with +.050 and seem to be a little cheaper.
@@cuttersperformance The Howards 93010 are JUNK...!!!! They are so wavy that I only get .010 offset. They don't sit in between the valve and retainer smooth and tight. Going to try the Summit ones
Crane offset keeper part # 99095-1 (Part # 43093010 Howards Cams 93010) Thanks! I missed this on my heads. I did break in my cam already. My cam has 0.477 int./0.480 exh. lift. (COMP Cams CL12-242-2) I will have to fix this.
Outstanding work 👊🏼 I’m looking to freshen up my 94 impala SS. I just ordered Try-Y gen 2 ceramic coated headers with 2 1/2 inch XL spintech mufflers. The car has 105,000 & I plan on keeping the stock cam. I’m looking into beehive comp springs with 1.6 RR. The plan is installing them under the hood down the road. I have been a mechanic for 19 years & have never done them on an Lt-1. Any advice would be greatly appreciated. This car is in honor of my brother that was killed in 94, he was a marine. I must say that you are doing a great thing by sharing your knowledge & I just subscribed 👊🏼🏴☠️🇺🇸 🔝
Yeah man not hard to do, Use a leak down tester to pressurize the cylinder at TDC, then use a on car head valve spring compressor to push the spring down. Then carefully use a magnet to remove the keepers. *the compressed air hold the valve up* Let me know if that doesn't answer your questions and I can do a video on it Cheers!
The 26915 comp springs are the ones I’m reading about. I have the other part numbers in my tool box for the retainers & whatnot. My question 🙋🏻♂️ is which tool would make it easier for removing the springs. I have the spinning star ⭐️ one in my box. I read about another that’s a lower profile, to make the process quicker for the firewall side. I’m in no rush at the moment cause I’m still waiting on parts. Again, I sincerely thank you for sharing your knowledge 💯🏴☠️🇺🇸
Piss Cutter... Have you ever looked at the Alex's Spring Kit. Has special keepers that make the clearance to like .550 lift. Affordable. I do like the Beehives for their performance. I went with Alex's however and they have performed very well. Have 15K in it now. Springs are like 130lbs seat pressure.
@@cuttersperformance Hey there! I am getting ready to install some beehive springs - I want to install screw in studs. Can you recommend a stud kit? I will be staying with stock rockers, not going radical with the cam, just a 280H. If you could recommend some studs that would work without cutting the bosses and would work with the factory rocker I would appreciate it. Also, what is a good tap? THANK MAN!
I have had good luck with pioneer 850001 stud kit. Buy yourself a good quality tap from your local hardware store, the heads tap fairly easily I will be posting a stud video within the next week
@@donaldwarwick6780 Pipe taps are for pipe threads, Bottom taps are for blind holes{putting threads to the bottom of a hole not drilled through} Plug tap same as Bottom Tap for our usage. Tapered/Starting used for starting in blind holes or through holes. For the screw in studes I would get one Tapper/Starting Tap and one Bottoming/Plug Tap
Someone mentioned to me that they had seen a RUclips video about swapping to complete LS valve train. I don't remember, they said they were the 1.99" intakes and 1.55" exhaust. Upgrading to a bronze 1/2" odd guide for the .312" valve stem, as well as the LS6 springs. I haven't found anything on this. I've found plenty of videos, swapping springs. Yours is the most comprehensive on the spring swap. But I'm wondering if there is any advantage, performance-wise, flow-wise or weight-wise with that kind of swap. All I know is is from what I've been finding in researching, is that the stock 1.94s and 1.50s are pretty much better off left alone rather than going to a 2.02 and 1.60. Have you ever seen or heard about anything about the valve & spring swap (and guide) upgrade?
Do yourselves a favor and get the screw in studs with guide plates... Self centering roller rockers are more expensive and doing guide plates gives you more options!
Hello brother I really love you're content its been really help full I've done the porting on my 062 heads to how you explained i ordered the 12499224 ls6 springs but I got for some crazy reason the 12713265 springs what is the difference if you can help I would really appreciate it thank you for all your content keep on uploading cuz I as well as my family and friends will be posted from my home to yours stay safe
This was a good video my only thing is I’m running .450 with 100% stock heads and it runs great I’ve heard mostly that you can run about .465 with stock heads as long as it’s not a high duration cam but I love your content keep it up man
Do you have a pretty mild or stock cam? Stock springs are pretty weak for any sort of performance cam. I'd be very nervous running past .450 lift personally Thanks for the positive feedback! Vortec porting / flow bench videos coming soon!
@@cuttersperformance also I 100% agree I know I’m cutting it close at about .030 clearance but I haven’t had any issues but I won’t run anything over .450 without beefed up springs and retainers
@@anthonyspangler1537 Hit me up if you need a spring kit for those suckers! I got springs to cover from mild to wild, no machining and direct drop in! pcperformance1@outlook.com
Have you ever ran a solid roller cam on vortec heads. I am running lt1 heads n a buddy gave me a street roller 290* .555 lift. Going to need a stout spring. You’re the most knowledgeable on these style heads
Ive actually never ran a solid lifter cam with vortec heads. Typically the vortec headed engines im doing are for guys not wanting to make adjustments. I may consider a mechanical roller for the dingle ball because of the price of retro fits right now.
Total newbie so don't hate. I'm redoing a L48 Corvette my uncle gave me after I returned from Iraq. I finally have the time to get on it. I understand the L48 vettes only put out about 180hp so I picked up a set of rebuilt 062 Vortec heads and intake to reuse the quadrajet carb. I have a L79 cam for it as well. Do I need to change the pistons to accommodate the heads? Do you have any other suggestions? Again, new guy, don't hate..lol
I will be installing a mild hydraulic roller cam in my stock 906 vortec heads with .450/.450 lift. I would like to use my stock retainers/keepers because they seem to be in good condition and I’m on a budget. Any spring recommendations would help thanks and awesome informative video!
Gen 1 350. Vortec heads. Just swapped out rocker studs in case future upgrades on cam. Bought L79 cam. Recommendations on rockers.. interested in rollers but know I need self aligning because the vortec don't have guide plated...
The LS6 springs are designed for a Hydraulic roller cam. They work with stock to mild Hydraulic roller cams and Ive used them with flat tappet cams aswell
Do you have a minimum clearance between the self aligning edges and the retainer/ keepers? Also, if I have to grind/ file my aligners, what’s a “safe” amount to leave on the rocker? I’m hitting now on my intakes, with my new full roller rockers, and my 787’s with .050 offsets, but they have huge alignment guides on them! I ordered some of the .030 offsets, that I’m going to try on just the intakes, since the exhausts are fine (.520 exhaust lift, and .525 intake Summit’s LT-4 hot cam copy Sum-8802 roller cam). What limits do you suggest on the valve tip (intake side), and clearances with the alignment edges? Thanks in advance! LOVE ALL YOUR VORTEC VIDS! I’ve been watching them over and over for years now!!
If I run a 500 lift cam I don’t have to cut anything on the heads just get the same setup u have comp cams springs retainers and keepers I’ll be able achive 530lift even tho I won’t go that high
I was wondering if you had flow numbers for 14011034 Bow-tie phase 2 heads if they are a good head I sure would appreciate it. Love watching your video's. You make it a lot easier to work on heads. THANKS
Hey I was told and many write ups online using ls6 springs and comp cam retainers 767-16 u could run a lt4 hot cam so what you are saying is even with the ls6 springs and retainer u can only still get a max lift of .480 with 1.5 rockers
You will have to check on your heads but you will find that running the 787 on vortec heads won't give you the proper spring installed height with stock keepers That will two things: 1) Your valve spring just went from a max lift of say .550 with a 1.800 installed height to a max lift of .500 installed at 1.750. 2) your seal to retainer clearance with proper safe clearance will only be around. 480 maybe .500 with stock seals. So Basically no matter how you do it with stock keepers and Ls6 springs past .500 lift you are pushing the limits. Will it work slightly past .500 with stock keepers...maybe but is it worth the risk? You will have to do the measurements on the heads, you can use the method shown in the video without having to but any special tools Let me know if you have any questions
@@cuttersperformance I emailed you on outlook if it was yours and wanted to install a lt4 hot cam without taking the heads of what would u do thanks for the info in advance the email that I sent came from smokie535@yahoo.com thanks
Send me a email Patobrien31@outlook.com I have special offset retainers and valve seals that allow .530 lift with stock keepers. Ls6 springs would work as long as you don't have alot of duration
Great video. I've used this one plus other vids you have to rebuild my L31 Vortec heads. From a newb - thanks. Some updates if helpful: 1) The part # for the GM springs has been replaced with GM (19420455). They have changed color also to a gun metal gray. Summit Racing has them. 2) Finding the valve locks/keepers has been challenging. When searching for 99095-1, I'm being redirected to 99097 or 98. Where to get the keepers?
@@cuttersperformance One more question: Since the stock self-aligning rockers are a no-go with the offset keepers, what is your recommended rocker? Thanks again for channel.
FANTASTIC JOB, I'M DOING VORTECS ON MY 1981 CORVETTE WITH A COMP CAM WITH 480 MAX LIFT THIS COVERS IT ALL...THANK YOU , BEHIVE COMP OR LS6 WHICH DO YOU RECOMMEND
Hi! Great video, but what about the valve spring outer diameter? The LS springs are larger then the vortec springs, the valve spring seat is about 1.240 on my vortec head and the Comp Cams springs in the video is 1.282 and the GM springs are 1.290. Thanks!
This is exactly what I needed! Im running .600 valve springs for an ls6 on my heads, screw in studs and offset keepers, but what are the best or what self aligning rockers would you recommend?
I've had good luck with the comp cams roller tip rocker arms Especially with offset locks locks becuase you lose some of the valve tip. Make sure you check your rocker to retainer clearance *See my vortec rocker arm video
I used .030 keepers on the beehive springs with a 501 505 lift cam will I be ok or do I need to do something different it also gave me .020 more fore my rocker self aligning at the rocker what do you think thanks
Did you check what your seal to retainer clearance was? Installed height should be around 1.780 with the .030 keeper and the 787 retainers. Installed at 1.780 a LS6 spring is good till .530 lift
@@cuttersperformance .058 thanks for the reply I'm building a imca I'm thinking.003 on the mains and rods .007 on the side skirt I have a 80 pound pump with oil restrictors for the top end a 7 + 1 oil pan any wisdom would help thanks again
What's up man? Love your videos. I have a quick question for you, I am doing the ls6 spring on some 906 vortecs and have notice the bottom of the spring is pretty snug to the guide boss. Will that be ok? I've always been told you need .010 clearance.
Very good infos thanks ! I have stock bottom end l31 vortec engine My heads have been ported, 3 angle porting, and beehive springs. So i want to put a Xe268h-10 cam .wich has .480 full lift.. In your opinion should i keep the stock self alinign rocker arms or i should buy the aftermarket rocker arms ? Surely i will also take a look at the clearance between the retainers and the rocker
Thanks for the video. Question, I have a new pair of 062 heads I bought years ago and have been saving. They had the Z28 beehive springs installed by a shop, and I was told the were checked to .480 lift. Only planning to go .440 lift on the cam. Are the press in studs ok? Thanks.
could you file/grind a bit off the bottom most part off the keeper or retainer just enough to clear those rarely fail due to weakness so that says they are stronger than needed but obiously offset keepers would better
Thank you for this information!! I will be doing the same thing to my heads but I've hit a road block when it cone to ordering my pushrods... my cam is 495/502 meiling 22280. Will the factory size pushrods work?
Just about everything can change the pushrod length, but if your going with vortecs on a roller block then the factory pushrods of 7.200 should be close. You will not know for sure until you assemble everything and check the pattern on the valve tip
@@cuttersperformance im interested in a kit with comp cam springs and retainers as well as the offset keepers. Ready to purchase! This should give me .550 lift correct?
I do have a kit, but currently back ordered as I can't get stock right now because the manufacturers are behind. But....if your a vortec fan be sure to Subscribe as there's a giveaway coming up very soon
Yeah, you can typically use a roller tip rockers with factory valves and offset keepers. The exhaust valve is no problem as the tip is longer, but the intake valve you have to check for clearance
This video is very helpful I tried to purchase one of your kits but you said you do not have any available as of now. I just have one more question if you decide to cut down the valve seal guide with comp cams tool 4726 for even more lift how much would you have to take off ?
So, will the stock self-aligning rockers not work at all with the offset keepers? Just need to know, if not, I can send the keepers back I bought and just got with a 480 or less cam. Let me know when you can, I just cannot spend about 250 on rocker arms. THanks, brother - again awesome content!
Yeah but you will want to check your rocker to retainer clearance when using offset keepers Also this video may answer some questions ruclips.net/video/4CbmJC8kIAw/видео.html
@@cuttersperformance Man you are amazing, and this content - fantastic. May I ask one more question? I am going with a comp cams 12-246-3 which is .490/.490 - With the beehive springs and just the retainers do you think that might be okay without the offset keepers? I mean I will measure but it is darn close just based on calculations. If I didn't have to use the offset keeps that would make me feel safer. Once again, I am spreading the word about your channel man, you are doing GREAT work!
You will have to check your specific heads for installed height ect. Also make sure your valve seals are fully seated on the guide. Ideally you want at least .050 clearance from the seal to the retainer. If it's going to be less than that, I'd suggest using the offset keepers You'll also want to verify your actual total lift once the heads are mocked up on the engine with the rocker arms that you will be using as there can be a variance Cheers!
@@cuttersperformance Thank you so much for the help! Your videos and your responses have made it possible for me to dig into these engines...I cannot thank you enough for being so awesome man!
1st would like to say great tutorial! So if you did some grinding, you could manage a cam with .550 lift granted you have ptvc. Now what I'd love to know and hope you have an answer for is: Have you tried with factory LS1 / Gen3 valve springs? They have a max lift of .520 and I have about a dozen sets. Prob same with LS6 yellows and LS3 blues evenly combined. Gonna be doing a tpi l31 for a project 86 Vette. Thinking I should be able to run a factory cam from a 97 LT1 Trans Am I pulled from LKQ with OE LS1 valve springs on a vortec head. Also, be doing a similar engine build but with zz4 cam and possibly run 1.6 roller rockers with a set of LS3 blues. So what do you think about using OE gen3 valve springs for cams around .500 lift?
Great video! Very informative! I’m looking for a nice cam and spring kit setup for my ‘98 Chevy Silverado with vortec 350. Do you recommend one with a nice lope(like with a mutha thumpr or thumpr cam sound)?
Ls springs 560lift. 600lift all over ebay. The offset keepers i understand. Is there something special about the retainers. Is there a standard and a 7 degree retainer. What type of retainer is used. I am upgrading from stock flat tappet to a stock style roller (lt1).
Great videos I’ve have watched a few and thanks for the great advice. I'm doing a budget build with my old 350 rebuilt and bored 0.30 flat top pistons with Vortec heads Going to use ls6 springs and retainers with factory rockers would get the off set lock if needed . I Don't want to do any machine Could you recommend a good cam for this set up I know my compression is going to come up with those heads there are so many different cams I get confused I'm putting the engine in my Camaro its just a summer toy it has dual exhaust with headers th350 3:373 gears with 28 inch tires
Hi, will these Beehive Springs work on my 1999 Dodge 5.9l 360 Magnum Gas Engine..??.. I plan on buying all parts needed for my Cylinder Heads setup real soon.. Itself will stay mostly OEM with Porting the Heads.. Tanks...
I got a l31 crate motor and I am pretty disappointed with it I wasn't expecting much but still not alot of power I want a 480 480 cam should I use that offset keeper to be on the safe side
Just subscribed! Thank you, what valve guide seals are you using? I’d like to replace mine, maybe allow for more lift, I have a mild 350 going together, using a comp CL12-600-4 cam
Are you in a huge rush for the seals? I usually stock the viton seals for vortecs heads (stock guides) but im currently sold out. They will not give you much different clearance than the stock seals that are seated all the way down but they are better seals and easier to install than the steel shell oe ones
@@cuttersperformance I’m rebuilding a set and was just curious about them, I’m doing everything your recommended here in the video, thank you for the great video!
Trying to spec out parts for my 98 5.7 vortec...so could I run offset keepers, the comp retainers and drop in ls6 springs rated at .600 lift and clear a cam with .550 lift on intake and .540 on exhaust?
Hey bud , I wanted to let you know I enjoy and appreciate your video's. I have a question for you also. I recently ordered a set of the ls6 beehives from summit racing. There store brand and they were way to tight of a fit around the guide bosses. So i ordered another set of howards cams beehives that they recommended for my cam. They fit the bosses with room to spare and the outside lip of the spring pocket holds them in place pretty well. Do you think this setup is acceptable or should i rely solely on the guide boss to keep the spring in place. Probably have about .015 to .020 clearance between the spring and the guide boss.
What size are your guide bosses? A ls6 spring will typically fit perfect over a clean stock guide. i have has a few sets that ive has to take a sanding roll to clean up the guide a bit more for them to fit. As for you new springs if the outside pocket holds them then you should should be ok. A normal spring locator has about .010 clearance. Cheers!
@@cuttersperformance they range in size from .854 to .857 the springs i got from summit are around .855 id i ordered the other set of howards cams they are .900 id and seem to fit ok just a little wiggle room between them and the bosses but the lip around the outside of the spring pocket holds them in place pretty well. Thanks.
I bought a set of 906 rebuilt heads from a machine shop. I added 1.5 roller rockers and a summit 488/488 flat tappet. No screw in studs. It has new stock style 4 valve relief pistons. It runs great. Question what issues can I run into? I haven't taken it past 4k rpms.
@@juliodiaz8280 yeah send me a email pcperformance1@outlook.com They must have changed the springs + cut the guides if they didn't use beehives. Stock springs are very weak and you would never get the clearance at that lift
Hi, I have one of you spring kits. Would it b OK to run these beehive springs with a new cam break in xe268. Worried about to much spring pressure during break in. Thanks
Hey Geoff! I've broken in lots of flat tappet cams with those springs with no issues. Lots of break in lube on the cam and lifters, break in oil and proper break in procedure and you'll be golden!
How about running a little taller valve steams? Wouldn't that give you even more clearance for more lift? Do you have part numbers for the keepers/retainers/springs? Thanks.
Thank you so much for the great information. in the future I'll be using the caliper and coat hanger trick for sure! Quick question about spring pressure for those springs... The cam I have has the following specs: 218/228 @.050, .525/.525 lift with 1.6 rockers, 112LSA. Any thoughts if the LS6 springs would provide enough spring pressure? I've searched high and low and get so much conflicting info it's crazy. I'll be machining the guides down so clearance to retainer is not a problem. Thanks!
Hey Chris I have the exact cam as you and was here with the same question!!! I just tested my springs that came with that cam and they do seem a little weak, and also the dampers self destructed so I removed what's left of the dampers and put the old springs back on. They've always handled 6200 RPM without a problem. My next purchase would be some beehive springs with slightly more pressure than what the cam calls for.
Back again. Summit lists the gm 12499224 springs at .570 max lift. and the gm 12713365 at .550 max lift. Are these springs identical? Other places have the gm 12499224 at .550 max lift. Can I buy either springs?
I dial indicator would work if you have one. They also make special spring pocket dial indicators for checking spring height. But this way works great for most people with basic tools at home, and after the first spring its easy to quickly check the rest
Cool video I’m running vortec heads on my 84 c10. My question is I used ls6 blue springs and comp locks with comp retainers. No machine work besides cleaning and new valves guides are not cut down The cam I what to use comp thumper cam .479int and .465exh would good running this or cut it close. Thanks
Lots of confusion. Why does Summit advertise max lift for their Vortec heads as .520? These are Summit Racing Part Number: SUM-151124 Did they modify them for more lift?
Pat, did you have to machine the heads to accept the LS6 springs? I like the Summit 8802 hydraulic roller cam but, it has .525 lift. So, the offset keepers would get us to .530 lift but do the spring pockets need to be machined for the beehives?
Check out this video aswell, no machiene work done to the heads. I ran the similar LT4 hotcam recently with this setup, worked great with the ls6 equivalent summit springs up 6200 rpm all day. ruclips.net/video/UZosxGQyGMs/видео.html
are those keepers comp cam 11/32 .050? or another brand ? what is the part number on them I need to know if they are 7 degree and the diameter if you know it? Many Thanks
Working on an 4.3 vortec 1996 ,Would a whole set of z28 valve spring , retainers and locks .500 fit as good as the ls6 springs ? Also what stem seal fit better , the ls6 or sbc 11/32 .500?
Thanks man! You've just solved my problem of running a .506" lift cam without having to do any machining on my Vortec heads!
I cut my guide bosses down on my vortecs with the comp cams tool, installed Z28 springs without the dampers, and have been driving it 8+ years with zero problems.
I started cutting the guide boss down with a seal cutter and a drill more that 30 years ago
Dude! Why do you not have more VIEWS! This is an amazing video! You have a good clear way of explaining all of this and for the FIRST time, I understand lift - You have a new sub - I hope you can grow your channel!
Thanks man I really appreciate that! I have alot of cool projects on the go and finally decided to start filming some of it.
There is alot of weird info out there so I'm trying to make videos that I wish i had a few years back when I needed info.
Please share my videos and hit me up if you need any help or parts for your vortec projects!
@@cuttersperformance Thank you for sharing!!! I just did my first top end rebuilt on my 1970 chevelle crewcab. I used Vortec heads on the 307 bottom end. I have a 350 in the garage and I wanting to use my vortec heads on them with a nice cam - but I don't want to machine the hell out of them. With this information, I can get springs and put a nice cam in it and really go to town! Keep up the content - you actually explain things so that EVERYONE can understand. I am learning all of this and have been lost. There is a guy locally who I met on the SBC board on Facebook and he has been an awesome GURU for me as well! You are right there is not only so much misinformation but also nasty people who get hateful in a second if you don't grasp the concept they are poorly explaining. So, I tip my hat to you - and I will share your content with everyone I can.
I'm going to totally agree with this statement. And I have over 20 years experience building high performance engines, and so I also know what to look for when people make videos about a specific subject. I'm also the type that will call out somebody when they're just trying to get views but don't really know what they're talkin about. While there would be a couple of things I would add, this video is quite good and quite informative, and also explaining things in a clear way for others to understand. I can only imagine who gave it thumbs down. But then again it seems like every good video has thumbs down but nobody comments on why. Anyways this is a very misunderstood subject and very rarely do I see people cover it this clearly. I'm definitely impressed.
I agree that this is an excellent vid. The reason there aren't more views is because these engines are obsolete. LS is the budget build of choice now and the next generation LT has been out for quite awhile now. The LT will replace the LS and will only gain momentum in the coming years.
@@michaeldose2041 I understand what you are saying , but I'm soon to be 72 and I like the Vortec so I don't need all that wiring .I'll run a carb and hei , suits me fine .I don't race anymore .
You can get .100 longer stainless valves cheap from erson, with longer hardened pushrods also to keep geometry correct . This avoids what may be expensive machine work to cut the guides down ! Hope this helps.
Thank you for taking time to record this video. I finally understand how to determine maximum valve lift for my ZZ3 heads. You explained it in a way that makes sense.
Great video and just what I needed. Swapping the cam to 503/510 and will take this advice for my Vortec 5.7.
Glad to hear! Feel free to ask me if you have any more questions on vortec heads or your SBC build
I like your input, I'm building a 383 stroker. You just gave me the info that I needed, thank you.
I use the screw in studs too. A lot of the circle track rules say ya cant but those incognito ones have never been seen. I also break-in my motors on a run in stand before they go to the dyno with either a less than 80lb seat pressure spring or remove the inner spring.
Yeah, they are super hard to see when probably installed
Yep ultimate straight forward vortec upgrade info = PCP!! Pat you are seriously the leader in vortec info and experience sharing. Thank you.
I really appreciate that man! Shoot me a email with your mailing address if you would like a PCP keychain
Pcperformance1@outlook.com
@@cuttersperformanceI would love a PCP key chain!!! I have suggested (on many, many forums) to people who are doing vortec heads that they should look up PISS-CUTTER PERFORMANCE on RUclips, now you changed your name... And can we get some new vids???
the best channel for explaining sbc stuff to me thankyou I appreciate ya alot and how ya explain stuff
Wow appreciate that man, thank you
One thing to note, I did not see you cover in either video. I watched two of your video's on this topic you put out. You can run harden valve lash caps to get the needed stem height for the self aligning rocker arms. Just something to add I know a lot of people shy away from running them but they do work, also yes I know I am commenting on a 3 year old video just figured I would add this for those that did not know.
On the cheap you could pin the studs. They did it back in the day.
I dig the low tech but simple measuring technique of using the wire coat hanger
Super informative video!! Thanks for taking the time to break all of this down like you have!! Definitely gonna subscribe
Thanks man! I really appreciate that
Race on! 🏁
I just pulled my pressed in studs on 906 vortec heads. I used anti seize grease to lubricate the nut on the stud being pulled . if the nut starts getting hot move to the next stud and let that one cool off. It looked like most of the studs are stake and were difficult to pull and a couple came out easy. do not use a cheap nut use a valve stud nut which is hardened.
Thats the scary part, some dont come out nicely and and some do. Some come out very easily haha
I've been looking everywhere for # 99095-1 keepers and they are OOS everywhere. I can find Howards 93010 keepers. They are a forged version with +.050 and seem to be a little cheaper.
Summit racing part# SUM-174003-4
@@cuttersperformance The Howards 93010 are JUNK...!!!! They are so wavy that I only get .010 offset. They don't sit in between the valve and retainer smooth and tight. Going to try the Summit ones
Thanks Mang. Gonna put vortec heads on my 406 sbc
Awesome man! They are the best head for the money
Crane offset keeper part # 99095-1 (Part # 43093010 Howards Cams 93010)
Thanks! I missed this on my heads. I did break in my cam already. My cam has 0.477 int./0.480 exh. lift. (COMP Cams CL12-242-2) I will have to fix this.
When you can't run guided rockers you can run head gaskets for 90s LT1 they have rocker guides made in to the gasket
Great vijeho. You answered a lot of questions, thanks for posting.
Outstanding work 👊🏼 I’m looking to freshen up my 94 impala SS. I just ordered Try-Y gen 2 ceramic coated headers with 2 1/2 inch XL spintech mufflers. The car has 105,000 & I plan on keeping the stock cam. I’m looking into beehive comp springs with 1.6 RR. The plan is installing them under the hood down the road. I have been a mechanic for 19 years & have never done them on an Lt-1. Any advice would be greatly appreciated. This car is in honor of my brother that was killed in 94, he was a marine. I must say that you are doing a great thing by sharing your knowledge & I just subscribed 👊🏼🏴☠️🇺🇸 🔝
Yeah man not hard to do,
Use a leak down tester to pressurize the cylinder at TDC, then use a on car head valve spring compressor to push the spring down. Then carefully use a magnet to remove the keepers.
*the compressed air hold the valve up*
Let me know if that doesn't answer your questions and I can do a video on it
Cheers!
The 26915 comp springs are the ones I’m reading about. I have the other part numbers in my tool box for the retainers & whatnot. My question 🙋🏻♂️ is which tool would make it easier for removing the springs. I have the spinning star ⭐️ one in my box. I read about another that’s a lower profile, to make the process quicker for the firewall side. I’m in no rush at the moment cause I’m still waiting on parts. Again, I sincerely thank you for sharing your knowledge 💯🏴☠️🇺🇸
Piss Cutter... Have you ever looked at the Alex's Spring Kit. Has special keepers that make the clearance to like .550 lift. Affordable. I do like the Beehives for their performance. I went with Alex's however and they have performed very well. Have 15K in it now. Springs are like 130lbs seat pressure.
Real fine video! Thanks! No nonsense and extra puffing....
Also, please do the stud video if you have not already - Would love to see it explained well!
A vortec stud video will be coming up soon!
@@cuttersperformance Hey there! I am getting ready to install some beehive springs - I want to install screw in studs. Can you recommend a stud kit? I will be staying with stock rockers, not going radical with the cam, just a 280H. If you could recommend some studs that would work without cutting the bosses and would work with the factory rocker I would appreciate it. Also, what is a good tap? THANK MAN!
I have had good luck with pioneer 850001 stud kit.
Buy yourself a good quality tap from your local hardware store, the heads tap fairly easily
I will be posting a stud video within the next week
@@cuttersperformance Excellent I will wait for that. One last question - I see taps that are called pipe, bottom, plug, tapered - which tap do I want?
@@donaldwarwick6780 Pipe taps are for pipe threads, Bottom taps are for blind holes{putting threads to the bottom of a hole not drilled through} Plug tap same as Bottom Tap for our usage. Tapered/Starting used for starting in blind holes or through holes. For the screw in studes I would get one Tapper/Starting Tap and one Bottoming/Plug Tap
Someone mentioned to me that they had seen a RUclips video about swapping to complete LS valve train. I don't remember, they said they were the 1.99" intakes and 1.55" exhaust. Upgrading to a bronze 1/2" odd guide for the .312" valve stem, as well as the LS6 springs. I haven't found anything on this. I've found plenty of videos, swapping springs. Yours is the most comprehensive on the spring swap. But I'm wondering if there is any advantage, performance-wise, flow-wise or weight-wise with that kind of swap. All I know is is from what I've been finding in researching, is that the stock 1.94s and 1.50s are pretty much better off left alone rather than going to a 2.02 and 1.60. Have you ever seen or heard about anything about the valve & spring swap (and guide) upgrade?
Amazing description of what’s going on! Thank you
I use Dow pins on my stock studs I had a 292 510 Cam and never had a problem
Great content bro keep it up from new Zealand 😊😊
Do yourselves a favor and get the screw in studs with guide plates... Self centering roller rockers are more expensive and doing guide plates gives you more options!
great videos. These vortec 350 long blocks are cheap now. Great builders or throw a carb, hei and go.
I didn’t check because you checked for me!👍🏾 Thanks 🙏🏾
Hello brother I really love you're content its been really help full I've done the porting on my 062 heads to how you explained i ordered the 12499224 ls6 springs but I got for some crazy reason the 12713265 springs what is the difference if you can help I would really appreciate it thank you for all your content keep on uploading cuz I as well as my family and friends will be posted from my home to yours stay safe
That is the New GM part# for the ls6 springs so you should be good man!
Stay safe!
Cheers
Great vid I wanted to do this but was unsure now I know. Thank you.
This was a good video my only thing is I’m running .450 with 100% stock heads and it runs great I’ve heard mostly that you can run about .465 with stock heads as long as it’s not a high duration cam but I love your content keep it up man
Do you have a pretty mild or stock cam? Stock springs are pretty weak for any sort of performance cam.
I'd be very nervous running past .450 lift personally
Thanks for the positive feedback!
Vortec porting / flow bench videos coming soon!
@@cuttersperformance it’s a sum-8800 stage 1 cam it’s pretty mild with a almost stock smooth idle
@@cuttersperformance also I 100% agree I know I’m cutting it close at about .030 clearance but I haven’t had any issues but I won’t run anything over .450 without beefed up springs and retainers
@@anthonyspangler1537 Hit me up if you need a spring kit for those suckers! I got springs to cover from mild to wild, no machining and direct drop in!
pcperformance1@outlook.com
I’m only running .450 lift is there a slightly beefier spring available I’m looking for something slightly heavier but nothing crazf
Have you ever ran a solid roller cam on vortec heads. I am running lt1 heads n a buddy gave me a street roller 290* .555 lift. Going to need a stout spring. You’re the most knowledgeable on these style heads
Ive actually never ran a solid lifter cam with vortec heads. Typically the vortec headed engines im doing are for guys not wanting to make adjustments.
I may consider a mechanical roller for the dingle ball because of the price of retro fits right now.
Total newbie so don't hate. I'm redoing a L48 Corvette my uncle gave me after I returned from Iraq. I finally have the time to get on it. I understand the L48 vettes only put out about 180hp so I picked up a set of rebuilt 062 Vortec heads and intake to reuse the quadrajet carb. I have a L79 cam for it as well. Do I need to change the pistons to accommodate the heads? Do you have any other suggestions? Again, new guy, don't hate..lol
I will be installing a mild hydraulic roller cam in my stock 906 vortec heads with .450/.450 lift. I would like to use my stock retainers/keepers because they seem to be in good condition and I’m on a budget. Any spring recommendations would help thanks and awesome informative video!
ruclips.net/video/tNVX3W-KHT0/видео.html
Thanks for the coat hanger tip.
Cheap and works great 👍
Thanks for watching!
Be sure to subscribe, got some cool vortec flow videos coming up
Cheers!
Gen 1 350. Vortec heads. Just swapped out rocker studs in case future upgrades on cam. Bought L79 cam. Recommendations on rockers.. interested in rollers but know I need self aligning because the vortec don't have guide plated...
Comp cams or PRW self aligning roller tip rockers work well, especially if your trying to use stock valve covers
VERY informative , Thank You .
Like the video but was wondering if it would be safe to use a hydraulic roller cam with Vortec heads using ls6 valve springs
The LS6 springs are designed for a Hydraulic roller cam. They work with stock to mild Hydraulic roller cams and Ive used them with flat tappet cams aswell
Do you have a minimum clearance between the self aligning edges and the retainer/ keepers? Also, if I have to grind/ file my aligners, what’s a “safe” amount to leave on the rocker?
I’m hitting now on my intakes, with my new full roller rockers, and my 787’s with .050 offsets, but they have huge alignment guides on them! I ordered some of the .030 offsets, that I’m going to try on just the intakes, since the exhausts are fine (.520 exhaust lift, and .525 intake Summit’s LT-4 hot cam copy Sum-8802 roller cam).
What limits do you suggest on the valve tip (intake side), and clearances with the alignment edges? Thanks in advance! LOVE ALL YOUR VORTEC VIDS! I’ve been watching them over and over for years now!!
You'll want at least .055" nubs aligning the rocker to the valve tip and atleast .025 clearance from the rocker to the retainer or keepers
If I run a 500 lift cam I don’t have to cut anything on the heads just get the same setup u have comp cams springs retainers and keepers I’ll be able achive 530lift even tho I won’t go that high
I was wondering if you had flow numbers for 14011034 Bow-tie phase 2 heads if they are a good head I sure would appreciate it. Love watching your video's. You make it a lot easier to work on heads. THANKS
Hey I was told and many write ups online using ls6 springs and comp cam retainers 767-16 u could run a lt4 hot cam so what you are saying is even with the ls6 springs and retainer u can only still get a max lift of .480 with 1.5 rockers
You will have to check on your heads but you will find that running the 787 on vortec heads won't give you the proper spring installed height with stock keepers
That will two things:
1) Your valve spring just went from a max lift of say .550 with a 1.800 installed height to a max lift of .500 installed at 1.750.
2) your seal to retainer clearance with proper safe clearance will only be around. 480 maybe .500 with stock seals.
So Basically no matter how you do it with stock keepers and Ls6 springs past .500 lift you are pushing the limits.
Will it work slightly past .500 with stock keepers...maybe but is it worth the risk?
You will have to do the measurements on the heads, you can use the method shown in the video without having to but any special tools
Let me know if you have any questions
@@cuttersperformance I emailed you on outlook if it was yours and wanted to install a lt4 hot cam without taking the heads of what would u do thanks for the info in advance the email that I sent came from smokie535@yahoo.com thanks
Sorry man didn't see the email maybe check the address again
Pcperformance1@outlook.com
@@cuttersperformance hey yea I put the wrong email in I got it right this time thanks
What an awesome video! Im using a .480 lift, could I get away with just using ls6 springs?
Send me a email
Patobrien31@outlook.com
I have special offset retainers and valve seals that allow .530 lift with stock keepers. Ls6 springs would work as long as you don't have alot of duration
Great video. I've used this one plus other vids you have to rebuild my L31 Vortec heads. From a newb - thanks.
Some updates if helpful:
1) The part # for the GM springs has been replaced with GM (19420455). They have changed color also to a gun metal gray. Summit Racing has them.
2) Finding the valve locks/keepers has been challenging. When searching for 99095-1, I'm being redirected to 99097 or 98. Where to get the keepers?
Glad to hear! I will be getting more stock on keepers and valve seals soon if your interested
Cheers!
@@cuttersperformance One more question: Since the stock self-aligning rockers are a no-go with the offset keepers, what is your recommended rocker? Thanks again for channel.
@@mikevosper5604 did you end up finding the recommended rocker ?
@@adancortes3568 looking for rockers for this set up as well
FANTASTIC JOB, I'M DOING VORTECS ON MY 1981 CORVETTE WITH A COMP CAM WITH 480 MAX LIFT THIS COVERS IT ALL...THANK YOU , BEHIVE COMP OR LS6 WHICH DO YOU RECOMMEND
I like the comp cams ls6+ springs for flat tappet or mild roller cams
@@cuttersperformance great thanks, Yes I have flat tappet
Thank you brother!
Hi! Great video, but what about the valve spring outer diameter? The LS springs are larger then the vortec springs, the valve spring seat is about 1.240 on my vortec head and the Comp Cams springs in the video is 1.282 and the GM springs are 1.290.
Thanks!
This is exactly what I needed! Im running .600 valve springs for an ls6 on my heads, screw in studs and offset keepers, but what are the best or what self aligning rockers would you recommend?
I've had good luck with the comp cams roller tip rocker arms
Especially with offset locks locks becuase you lose some of the valve tip. Make sure you check your rocker to retainer clearance
*See my vortec rocker arm video
I used .030 keepers on the beehive springs with a 501 505 lift cam will I be ok or do I need to do something different it also gave me .020 more fore my rocker self aligning at the rocker what do you think thanks
Did you check what your seal to retainer clearance was? Installed height should be around 1.780 with the .030 keeper and the 787 retainers. Installed at 1.780 a LS6 spring is good till .530 lift
@@cuttersperformance .058 thanks for the reply I'm building a imca I'm thinking.003 on the mains and rods .007 on the side skirt I have a 80 pound pump with oil restrictors for the top end a 7 + 1 oil pan any wisdom would help thanks again
What's up man? Love your videos. I have a quick question for you, I am doing the ls6 spring on some 906 vortecs and have notice the bottom of the spring is pretty snug to the guide boss. Will that be ok? I've always been told you need .010 clearance.
Sometimes, the guides will need a casting clean-up with a sanding roll on a die grinder. Spring should slide on with minimal effort
@@cuttersperformance awesome man! Thanks for the fast response and keep up the awesome work!
Very good infos thanks !
I have stock bottom end l31 vortec engine
My heads have been ported, 3 angle porting, and beehive springs.
So i want to put a Xe268h-10 cam .wich has .480 full lift..
In your opinion should i keep the stock self alinign rocker arms or i should buy the aftermarket rocker arms ? Surely i will also take a look at the clearance between the retainers and the rocker
Thank you so much. This is a really informative video.
Thank you appreciate that
Thanks for the video. Question, I have a new pair of 062 heads I bought years ago and have been saving. They had the Z28 beehive springs installed by a shop, and I was told the were checked to .480 lift. Only planning to go .440 lift on the cam. Are the press in studs ok? Thanks.
could you file/grind a bit off the bottom most part off the keeper or retainer just enough to clear
those rarely fail due to weakness
so that says they are stronger than needed
but obiously offset keepers would better
Yes you can but you the offset keeper installs the spring at the proper height aswell
Thank you for this information!! I will be doing the same thing to my heads but I've hit a road block when it cone to ordering my pushrods... my cam is 495/502 meiling 22280. Will the factory size pushrods work?
Just about everything can change the pushrod length, but if your going with vortecs on a roller block then the factory pushrods of 7.200 should be close. You will not know for sure until you assemble everything and check the pattern on the valve tip
@@cuttersperformance thank you!
Great video!
Where could i locate the offset keepers? Part# ?
Thank you.
Are you in a big rush? If not im getting more stock in if your interested
@@cuttersperformance im interested in a kit with comp cam springs and retainers as well as the offset keepers. Ready to purchase! This should give me .550 lift correct?
@@cuttersperformance I also emailed you I am interested in a kit.
Also do u have a kit put together yet very interested your the man when it comes to these sbc heads man
I do have a kit, but currently back ordered as I can't get stock right now because the manufacturers are behind.
But....if your a vortec fan be sure to Subscribe as there's a giveaway coming up very soon
@@cuttersperformance awesome I have been subscribed
I just emailed you for more information about the Vortec spring kit. Interesting video. Thank you. Subbed.
Hey what valve seals did you use a part number would be great please
Pat, what's a good self aligning roller rockers for a behived only vortec head ? I did pull the studs and put in threaded. No guid plates. Tango
Can you use factory retainers with the beehive springs and offset keepers
No the 787-16 retainers must be used with the beehives
As far as the rocker concern with the offset keeper, could this be remedied by using self aligning roller tip rockers?
Yeah, you can typically use a roller tip rockers with factory valves and offset keepers. The exhaust valve is no problem as the tip is longer, but the intake valve you have to check for clearance
This video is very helpful I tried to purchase one of your kits but you said you do not have any available as of now. I just have one more question if you decide to cut down the valve seal guide with comp cams tool 4726 for even more lift how much would you have to take off ?
So, will the stock self-aligning rockers not work at all with the offset keepers? Just need to know, if not, I can send the keepers back I bought and just got with a 480 or less cam. Let me know when you can, I just cannot spend about 250 on rocker arms. THanks, brother - again awesome content!
Yeah but you will want to check your rocker to retainer clearance when using offset keepers
Also this video may answer some questions
ruclips.net/video/4CbmJC8kIAw/видео.html
@@cuttersperformance Man you are amazing, and this content - fantastic. May I ask one more question? I am going with a comp cams 12-246-3 which is .490/.490 - With the beehive springs and just the retainers do you think that might be okay without the offset keepers? I mean I will measure but it is darn close just based on calculations. If I didn't have to use the offset keeps that would make me feel safer. Once again, I am spreading the word about your channel man, you are doing GREAT work!
You will have to check your specific heads for installed height ect. Also make sure your valve seals are fully seated on the guide.
Ideally you want at least .050 clearance from the seal to the retainer.
If it's going to be less than that, I'd suggest using the offset keepers
You'll also want to verify your actual total lift once the heads are mocked up on the engine with the rocker arms that you will be using as there can be a variance
Cheers!
@@cuttersperformance Thank you so much for the help! Your videos and your responses have made it possible for me to dig into these engines...I cannot thank you enough for being so awesome man!
@Donald Warwick No problem man! I appreciate the support
Cheers!
1st would like to say great tutorial! So if you did some grinding, you could manage a cam with .550 lift granted you have ptvc. Now what I'd love to know and hope you have an answer for is: Have you tried with factory LS1 / Gen3 valve springs? They have a max lift of .520 and I have about a dozen sets. Prob same with LS6 yellows and LS3 blues evenly combined.
Gonna be doing a tpi l31 for a project 86 Vette. Thinking I should be able to run a factory cam from a 97 LT1 Trans Am I pulled from LKQ with OE LS1 valve springs on a vortec head. Also, be doing a similar engine build but with zz4 cam and possibly run 1.6 roller rockers with a set of LS3 blues.
So what do you think about using OE gen3 valve springs for cams around .500 lift?
I checked your stuff on the same head and your right. Do you know where you got those offset keepers? Thanks
I will be getting more stock soon if your interested in some keepers and valve seals for vortecs
Great video! Very informative! I’m looking for a nice cam and spring kit setup for my ‘98 Chevy Silverado with vortec 350. Do you recommend one with a nice lope(like with a mutha thumpr or thumpr cam sound)?
A really good sounding cam I've used a few times now is the meiling 22280
It has a really nice lump to it
@@cuttersperformance melling 22280 isnot a computer cam will work if you run carburetor if you are staying throttle body you need computer cam?
@@alfapecho818 ive used that cam with fuel injection. Needs a good tuner though
What rocket arms would u suggest using with the off set retainers, screw in studs, and the ls6 springs?
Comp cams 1417-16 work well
Ls springs 560lift. 600lift all over ebay. The offset keepers i understand. Is there something special about the retainers. Is there a standard and a 7 degree retainer. What type of retainer is used. I am upgrading from stock flat tappet to a stock style roller (lt1).
Great video!
3/8 diameter push rods eliminate the need for self aligning rockers
Great videos I’ve have watched a few and thanks for the great advice. I'm doing a budget build with my old 350 rebuilt and bored 0.30 flat top pistons with Vortec heads Going to use ls6 springs and retainers with factory rockers would get the off set lock if needed . I Don't want to do any machine
Could you recommend a good cam for this set up I know my compression is going to come up with those heads there are so many different cams I get confused I'm putting the engine in my Camaro its just a summer toy it has dual exhaust with headers th350 3:373 gears with 28 inch tires
what cam did you end up going with? going to change my springs and my setup sounds close to yours
@@PerFectCapture Competition Cams CL122463 Xtreme Energy XE274H Cam & Lifters Kit it pulls strong guessing around 375-400 Hp
So what retainers can I use for vortec heads with .500 lift cam,stock seals and melling vs-739R springs
Hi, will these Beehive Springs work on my 1999 Dodge 5.9l 360 Magnum Gas Engine..??.. I plan on buying all parts needed for my Cylinder Heads setup real soon.. Itself will stay mostly OEM with Porting the Heads.. Tanks...
I got a l31 crate motor and I am pretty disappointed with it I wasn't expecting much but still not alot of power I want a 480 480 cam should I use that offset keeper to be on the safe side
Crate motor, it probably has the later Mexico made vortec heads, not nearly as good as the made in the US ones.
Can install the blue b hive ls6 spring and run a XE274 comp cam with out off set keepers
Yes you can, ive done it. Just follow proper break-in if the can is new
Just subscribed! Thank you, what valve guide seals are you using? I’d like to replace mine, maybe allow for more lift, I have a mild 350 going together, using a comp CL12-600-4 cam
Are you in a huge rush for the seals? I usually stock the viton seals for vortecs heads (stock guides) but im currently sold out. They will not give you much different clearance than the stock seals that are seated all the way down but they are better seals and easier to install than the steel shell oe ones
@@cuttersperformance I’m rebuilding a set and was just curious about them, I’m doing everything your recommended here in the video, thank you for the great video!
Awesome content
Trying to spec out parts for my 98 5.7 vortec...so could I run offset keepers, the comp retainers and drop in ls6 springs rated at .600 lift and clear a cam with .550 lift on intake and .540 on exhaust?
Hey bud , I wanted to let you know I enjoy and appreciate your video's. I have a question for you also. I recently ordered a set of the ls6 beehives from summit racing. There store brand and they were way to tight of a fit around the guide bosses. So i ordered another set of howards cams beehives that they recommended for my cam. They fit the bosses with room to spare and the outside lip of the spring pocket holds them in place pretty well. Do you think this setup is acceptable or should i rely solely on the guide boss to keep the spring in place. Probably have about .015 to .020 clearance between the spring and the guide boss.
What size are your guide bosses? A ls6 spring will typically fit perfect over a clean stock guide. i have has a few sets that ive has to take a sanding roll to clean up the guide a bit more for them to fit.
As for you new springs if the outside pocket holds them then you should should be ok. A normal spring locator has about .010 clearance.
Cheers!
@@cuttersperformance they range in size from .854 to .857 the springs i got from summit are around .855 id i ordered the other set of howards cams they are .900 id and seem to fit ok just a little wiggle room between them and the bosses but the lip around the outside of the spring pocket holds them in place pretty well. Thanks.
Roller tips?!
I bought a set of 906 rebuilt heads from a machine shop. I added 1.5 roller rockers and a summit 488/488 flat tappet. No screw in studs. It has new stock style 4 valve relief pistons. It runs great. Question what issues can I run into? I haven't taken it past 4k rpms.
Do you know what springs are on it?
@@cuttersperformance I believe they look stock. Can send you pics if you want
@@juliodiaz8280 yeah send me a email pcperformance1@outlook.com
They must have changed the springs + cut the guides if they didn't use beehives. Stock springs are very weak and you would never get the clearance at that lift
@@cuttersperformance ok sending you pics in a bit. Thanks for the help
Hi, I have one of you spring kits.
Would it b OK to run these beehive springs with a new cam break in xe268. Worried about to much spring pressure during break in. Thanks
Hey Geoff! I've broken in lots of flat tappet cams with those springs with no issues. Lots of break in lube on the cam and lifters, break in oil and proper break in procedure and you'll be golden!
If i use the same vortech head upgrade with ls spings and cam you use on your 355 on a 305ho do you think it would work for a power increase
Do you have a part number for the offset keepers? Are they 10 degree? You do a great job thanks for your videos.
How about running a little taller valve steams? Wouldn't that give you even more clearance for more lift?
Do you have part numbers for the keepers/retainers/springs? Thanks.
Thank you so much for the great information. in the future I'll be using the caliper and coat hanger trick for sure! Quick question about spring pressure for those springs... The cam I have has the following specs: 218/228 @.050, .525/.525 lift with 1.6 rockers, 112LSA. Any thoughts if the LS6 springs would provide enough spring pressure? I've searched high and low and get so much conflicting info it's crazy. I'll be machining the guides down so clearance to retainer is not a problem. Thanks!
Hey Chris I have the exact cam as you and was here with the same question!!! I just tested my springs that came with that cam and they do seem a little weak, and also the dampers self destructed so I removed what's left of the dampers and put the old springs back on. They've always handled 6200 RPM without a problem. My next purchase would be some beehive springs with slightly more pressure than what the cam calls for.
Back again.
Summit lists the gm 12499224 springs at .570 max lift. and the gm 12713365 at .550 max lift. Are these springs identical? Other places have the gm 12499224 at .550 max lift. Can I buy either springs?
So I can safely run stock keepers and retainers with a ls6 as long as I don’t go over .480 lift right?
Yes, but you should do the checks shown in the video to be sure. Make sure your valve seals are seated all the way down aswell
Can I use them springs on flat tapped cam. Great video bro
i would like to know that to lol
Wouldn't a dial indicator work better?
I dial indicator would work if you have one.
They also make special spring pocket dial indicators for checking spring height.
But this way works great for most people with basic tools at home, and after the first spring its easy to quickly check the rest
Can you use the stock rocker arms with this setup
Again very good information. Question, do you know which is a good spring for my setup. vortec heads stock rockers,. cam xe262/270 thanks alot 👍
Send me a email with your info and i can give you some suggestions pcperformance1@outlook.com
Cool video I’m running vortec heads on my 84 c10. My question is I used ls6 blue springs and comp locks with comp retainers. No machine work besides cleaning and new valves guides are not cut down The cam I what to use comp thumper cam .479int and .465exh would good running this or cut it close. Thanks
As shown in the video .480 lift was good with a .050 clearance to the stock seal.
So if you used the same retainers you should have no issues 👍
Thanks
Lots of confusion. Why does Summit advertise max lift for their Vortec heads as .520?
These are Summit Racing Part Number: SUM-151124
Did they modify them for more lift?
They are an aftermarket casting, not a reconditioned factory casting. I believe they are made by Dart.
Pat, did you have to machine the heads to accept the LS6 springs?
I like the Summit 8802 hydraulic roller cam but, it has .525 lift. So, the offset keepers would get us to .530 lift but do the spring pockets need to be machined for the beehives?
Check out this video aswell, no machiene work done to the heads. I ran the similar LT4 hotcam recently with this setup, worked great with the ls6 equivalent summit springs up 6200 rpm all day.
ruclips.net/video/UZosxGQyGMs/видео.html
are those keepers comp cam 11/32 .050? or another brand ? what is the part number on them I need to know if they are 7 degree and the diameter if you know it? Many Thanks
Working on an 4.3 vortec 1996 ,Would a whole set of z28 valve spring , retainers and locks .500 fit as good as the ls6 springs ? Also what stem seal fit better , the ls6 or sbc 11/32 .500?