HOW TO: SBC POWER COMBOS
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- Опубликовано: 4 окт 2024
- FULL RESULTS. SBC HP HOW TO, TRIPLE TEST, MILD, MEDIUM & WILD. Using the same 350 short block, this video shows you how to build a mild combo for mileage, torque and towing, a dual-purpose, performance street/strip combo and wild, race motor. Three SBC combos, with completely different power outputs and power curves, depending on the components applied. Choose wisely!
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Was nice to see a comprehensive test on an old school small block. They always respond well to sensible modifications!
Great Video Richard! Nice to see a section on more of a daily/ tow setup. Most people always want to see the high HP numbers, but some of us like to see the performance down low where it would be used in daily use.
Me too. Got trucks.
They are underrated. Most of us can have plenty of fun with a sub 6000 rpm build made with torque in mind. The old Isky 264 mega cam remains one of my favorites for general purpose fun. Given the tech of the day, how he got so good so fast at his craft still amazes me.
This was good for my old school small block soul.
By far the best RUclips channel that gives you all the ins and outs of combinations of motors and listens to his comments and I just love it.
Absolutely
Hey RH, your content has been my medicine during this lockdown pandemic! Thanks for the "NO" BS content and delivery. Keep up the great work!
Thanks, will do!
This is the way all dyno comparison videos should be filmed. Bravo!
People forget with all the turbo ls stuff and 1000 plus hp combos running the roads how fun 400 horsepower small blocks actually are .
I rarely comment but this video is fantastic! Great practical information presented in a clear, understandable fashion. Information that is hard to find. Clearly a lot of effort went into this project. Thank you Richard!
Glad it was helpful!
Richard definitely deserves more subscribers! He doesn’t fill his vids with off topic crap!
That Qaudrajet will perform just as well as the Demon. Most people don't know how to tune a Qaudrajet. I've used the Qaudrajet for years. Some drag race series will even require the Qaudrajet. The Demon is a great carburetor also. I've had both and prefer the Qaudrajet just to be different. It would be nice to see a comparison of the 2 carbs by someone that knows how to tune the Qaudrajet. Cheers Richard Richard thanks for the great videos brother
I’ve got qjets on two of my cars. One has a 240 degree 560 lift at 050 cam and full cnc heads. It honestly wasn’t that hard to get the qjet running right on it just took some reading, Cliff ruggles qjet book helped out a lot. Holleys are fine I’ve had some before but the tuning parts are so expensive and they don’t feel as good driving as the qjet.
SBC= The original LS! LOL lots of LS guys forget, they are still “small block Chevy”!
Uh. No we don't. All LS's are still small blocks. We know this. We aren't dumb.
whatre you doing here ;D
Sbc is the base but not an LS engine. Ls engine has all the new technology taken form the mistakes from the early days. Ls are more efficient but aftermarket has now helped the sbc make as mush power. You would never see Roller cams on early sbc and now aftermarket stepped up making the sbc more efficient. Yes ls is a sbc but it’s nothing like the 1 generation sbc. I would definitely build a sbc before doing a swap thanks to this video
FXIIBeaver you are a smart one! A Lot forget the Chevy part! Chevy been engine swapping Fords forever, lol
Kincent Carter love watching Richards vids! Very smart dude!
That last portion of the test where you switched the intake makes me happy with what I did with my combo. A heavy truck needs that extra torque when launching into a mud pit.
I have a heavy truck my setup was close to the first build just bigger cam and better heads I think I might get close to 400hp
Would absolutely love to see this same comparison but with a 400 ,/ 406 cid sbc, that would be very interesting!
Me too 🤞🏽
I’d like to see a mild to wild 400 combos video as well. I'm getting ready to build a 400 SBC to go in a 1968 Malibu station wagon.
This was a great test. I like the step by step upgrades and dyno for each step. You are the man Richard!!!!
Great video as usual. I built a solid roller 406 that made 611 hp at the crank and people thought I was full of BS. I had to show them how easily you made over 500 with a 350👍
That’s pretty big HP for 406 if it is truly a street engine with pump gas compression and a hydraulic cam. Unless of course your engine has high compression and a could cam which make it more of a race engine vs a street/strip engine.
Dan Myers Dan Myers I think he’s spot on, if you use the right combination. Think about it Richard got 542hp from the 350!
Cheers
I’ve got 660hp from my 434 sbc 10.8:1 comp
My 388 is at about 650. Not at all streetable (still street driven)but with the right parts, just about anything is possible
I have a 383 stroker 11.0 compression, 243/249 solid roller and afr 210s with a Holley sniper x flow system, I’d say it’s stout
This is probably one of your best videos for your average Joe good job Richard
I would love to see a similar video on a BBC. Thanks for your works man.
Awesome videos. It still blows my mind how are we underrated these motors back in the day. And for those who did modify them people didn’t really say much but the moment someone said they had a 355 bored 10 over the first thing people screamed was “wow what a gas guzzler” lol 🤦♂️
They were never underrated
I built a 'mid' level sbc with a comp cam 280, .480.480 @ 110 lsa for 10 years in an 85 chevy short/wide. It's now with its 4th owner and in its 4th vehicle still running like a champ. Love me some SBC!
444 Ft lbs and 418 HP! That's a Street Killer and a towing machine! all around fun for only 350 inches, that's the way to go!
this is another amazing test video! who dynos a tiny 2G 283 intake and carb? nobody but Rich, there are plenty of channels the test the usual stuff but rich test a super wide range of awesome stuff! thanks RICH!
Great video. For a practical street car which will spend little or no time at 5500 rpm or higher, the choices seem clear. Solid info.
I love a guy that post real stuff and not ad for a company... cool cat. I am working on my 1955 hardtop i have put a vortec in so this has been some really valuable info for me. Thanks for your time.
Just goes to show you how good an old school chevy small block was and personally I think how it still is. Really nice job with this video.
Even with all the LS stuff this is still one of my favorites. Big block stuff is still my favorite though!
Thank you, this helps me so much . Your generosity with your skills and knowledge is greatly appreciated.
This was awesome! I'm doing a 383 for my wife's 87 monte carlo ss. I'm probably shorting myself on heads, but I've got vortec heads with edelbrock dual plane air gap, 770 street avenger carb and comp xr276hr cam
Richard, thanks for these phenomenal videos. I am going to be adding a Nova SS350 to my garage to join my 512 stroker Barracuda. 👌 fastback
Sounds great!
This was the video I been waiting for! Well done sir👍👍
Awesome content & one of the only vids out there I’ve ever seen with dyno proven gains with each mod being done! I’d love to see more videos like this from you!!
Thank you bro. Love watching anything about sbc.
I'm building the Wild combo for my car, but after re-watching this, I'm most impressed by the ported 882's/RV cam combo. It's extremely basic and makes respectable power for many applications.
Now I wonder how, RV cam + Vortec heads + TPI would look (for a towing application)?
Awesome video Richard. Now I think what you need to do is the ins-and-outs of the Chevy small block 400. It would make a great other guys episode I think. What do you think?
This Hits the spot... Like a double shot... Great info Richard like for real... And very helpful player💪🏾💪🏾💪🏾... Finna share this about 25 times right now I swear
"what the heck, let's do all 3" 🤘😎🤘
That's Richard for ya!
I've always owned Ford trucks but when I built my speedboat, SBC was the only way to go. Awesome platform.
Honestly love this youtube channel.
That 639 hp stock vortec motor was really pushing the limits. Anything past 450 with a stocker I start sweater.
Bloodviking
Fabulous. My brother had an old, rusty, 1970 Monte Carlo with a 4bolt 350 2bbl. It said 245hp on the air cleaner - virtually the same as in the video. We put the engine in an old Chevy dually and added a 4bbl and manifold form a junk yard. No other mods - no headers, no cam, etc. We always wondered how much power we gained. It appears that we probably made another 25-30hp. It made that old truck come alive with a full load of oak. I enjoyed this video - the video didn't say but i assume it was working with a 4 bolt block
I'm also eager to see more "other guys" builds, especially BB & SB Mopars, and not just junkyard motorhome ones, lol.
Since you had to answer it a few times, would you mind pinning the Wild Cam grind, in the comment section?
I was expecting XR288 myself. Glad the biggest of the SBC XE line is still so streetable.
Baselining with the old heads made the following mods more impressive, but my first change would be vortec heads and a compatible manifold. No complaints with your progression, just moving to modern combustion chambers and ports is what makes sense to me. Looking back at the DZ engine, they kept some mid-range by using a dual plane manifold on a 7000 rpm engine. Looking at how airflow works, it seems to me the active cylinder only sees half the carb on a dual plane, thus could always use a BIGGER carb than a single plane, at least with the same cam/heads. Getting to 520-540 hp range with a 350 is serious stuff, especially the dual plane setup with little to no torque loss. Incredible stuff in this video, thanks Richard!
One more thing, we need to see TPI on the RV cam engine...
I mentioned the Vortec heads as an option in the video-they work well
SBC is the most amazing platform to build on
Lots of options
From mild to wild
I’m a SBC guy hands down
Great Video. I have one in a wrangler and works well, but getting ready to play with it some. Thanks for the video.
Thank you you give me hope for my 330hp gm crate motor. It's got the vortec heads but I thing some AFR heads, roller cam, RPM intake and 750 carb would bring it up to 500 HP.
Love your videos so much great information! Keep it up man, appreciate all u do for the car enthusiast who watch informational videos thanks again
@Richard Holdener you could extend the content on your channel by meeting up with fans and showcasing their cars and engine builds and drive them and talk about results at the strip etc. awesome channel you are an engine master for sure. Thanks for all your awesome content. Very educational! Engine science😎
It's already been mentioned, but I'll ad another vote for a similar video with a 454. Please
Super random. I’m the owner of Nutrishop Vacaville. We need to get you some new shirts!
LAST ONE OF THOSE I HAD WAS WHEN I WAS AT GOLD'S GYM
@@richardholdener1727 are you still in Vacaville? The reason why I saw your video is because a buddy needs help with an engine lol
Love Seeing the old school sbc.. would love to see a run of the mill 383 with twin turbos oh and a carburetor.
Great job, wakes up memories
Really interesting tests and some nice combos. Id sure like to see some detailed info on porting the 882s and like, that made a good increase
check out horsepower monsters. they did it made 380hp with 882. and the dart iron eagles still whooped their ass and they put about 1000+ dollars of labor into them not worth it. just buy dart vortecs
Ya i get it, its just sometime you got a good set of 882s or the like and not much money, iv got a few heads and shortblocks from oval track friends, usaly end up puttin turbo on them but its still fun to try to get the most out of whats there
So a well built sbc makes as much power as an ls engine. It’s cheaper to build a sbc as well. That sbc made about 100 more than the stock ls3 and would cost fraction of the price. You can probably stroke it to 383 and get it to 600 hp range. Nice little setup and looks like the wild version will work for street use
An LS3 with a cam and springs makes 565-570 hp-SBC AND LS are both good
Richard Holdener I got an ls3 to do a swap but seeing this video makes me double think my decision.. probably fuel efficiency would make a difference Between the ls and sbc. Used ls3 are not cheap between $4000 to $6000. That money can be used to build a solid 350 like yours. I really loved this video and can help people make a decision
@@Miguelspl150 just start with an LQ9 and slap some LS3 heads on it.
James Williams lq9 are pricy here in LA CA. Ly6 would be the better option but those are hard to get here and so is the lq9z you’re still spending money to get it done. About 2k once you upgrade the cams and upgrade intake and injectors to fit a car application. Ls is still more expensive for the same amount of power not to mention a freshly built 383 vs a beat to hell ls engine that might need a rebuild sooner than later
@@Miguelspl150 I'm in ca as well sf bay area, I found a lq4 shortblock on Craigslist for $500, had it bored .030 over and put ls2 pistons in it with ls3 heads with an asa cam, 370" total did it all for well under $2500 and went on ebay and found a l96 complete from a schawns delivery truck setup to run on propane, delivered to my door for $850.....Deals can be found in ca. You just need to look a lil harder, you definitely not gonna find them from the junkyard or pic n pull.....hell I got a 5.3 lm7 on ebay delivered to my door for a hair under $400........just type in the search, "used chevy 5.3 free shipping "........ or 6.0 if you have a bigger budget
Good information! Good video! But what about was the last camshaft? One reason I like your videos is you help take out the guessing part of what the engine will do if I do this or that to it. And if I just is the same parts I will get close to the same power which is awesome for that I thank you. My first car I Hot Rodded was my 67 Galaxie 500 2 door fast back I put a 390GT camshaft a 428 Police Interceptor Intake with a 800 QJet carb. Car went from a top speed of 130 to a top speed of 150! From watching a lot of your videos I really messed up not putting headers on it stock exhaust manifolds are junk on 390 Ford
As I remember as a good combo was long tube headers with 3" collectors, ported and polished 202 high compression heads, Mantly 12.5:1 compression pistons with a Offenhouser 360 degree dual port high rise square bore aluminum intake manifold and a 780 dual feed double pumper carb and a Crane mechanical "phase 3 cam" with springs and screw in studs. Then a nitous shot of whatever your engine bottom end could handle. It made great power and it didnt break the bank. Drop that in a Chevy Vega or a Chevy Monza and go have some fun trying to get i tto hook up. No Idea what the HP or torque rating was but braggards were saying things like 800 hp and other just as unbelievable numbers but they were serious tire burners and I've seen at least one in the very low 11 sec range playing with the possibility of breaking into the 10's. I remember the anouncer at Cecil county drag strip anouncing him and saying "He's tickling 10's. Can he do it!" Which made me laugh. That's probably why I remember it so vividly. There was at least one guy in hotrod magazine that boasted a 69 camero with an NA small block running 9's I never saw it happen but I assume someone did otherwise it wouldn't have made it into the magizine. Back in the day those were some serious numbers. Perhaps not so much today with turbo charging and computers but back then that was big stuff.
That Offy intake is seriously obsolete nowadays. Probably wasn't much else available back then.
Hi Richard, This mild combo sounds like the one in Chevy Rumble magazine May 2007? You have the best channel on RUclips keep up all the hard work and the great content!
Wooooooooooo SBC!
Specs for the wild Cam? That’s the only thing you left out! 😩
Dang-it was a Comp XR294HR
Thank you and i Appreciate all the testing and videos you put out on youtube.
Always great stuff from you sir..glad someone asked about the big cam spec's...that was my question too...
@@richardholdener1727 Richard I'm sad Holley isn't offering the Systemax heads anymore.. I always liked the 20 degree vs 23 deg arangement on those. I had the idea of Angle milling those 20 deg Holley's to see if I could reach 18 degrees (90's NASCAR) angle. Would love to see you try. Or even on a set of stock 20 deg SBF heads. 18 deg at low cost and no fancy valvetrain or manifold required. Angle milling normally picks up 15cfm on a 23 deg.
Yeah, I kept waiting on the hydraulic roller specs
You should put a list of parts you used. I would like to build one of those engine combo.
Would love to see a wild 377 NA small block build!
Awesome! When do you sleep? Also can you do a full kill sbc? Like a 427 with tall deck Iron Eagle block , 18° Brodix heads, egg shaped cam and a 1050 dominator? thanks in advance!
That was a great video especially with the 2bbl. I would have tried the 500cc 2bbl in this test.
Wondering what hydraulic roller cam did you use, was it a pump gas setup ? Appreciate all your videos very informative 👍
comp xr294r hyd roller
Thanks much sir, was it on pump gas, I'm planning on building this combo soon
I add one more, Chevrolet what a design very good oil flow for oil pressure very easy to work on make horsepower and torque you can't go wrong
i would like to see a performer RPM quadrajet against an EPS intake versus these on the stock or mild combo. and lets talk about the 270S-6 comp cams lift limited cam with a 4 and 7 swap with AFR195 competition heads and 10.5:1 with custom long runner intake. and make it a 376 SBC, i have the pre blueprint for ya. oh and make it with a stock deck hieght 9.025" but offset grind nodular iron crank to get pistons at top deck level. then get the solid roller version of the cam with the same timing events to max area ! Then raise the rocker ratio. now drive it in a camaro street car , test and tune and use a TH350 with whatever stall that works but only use 3.42 , 3.23, 3.73 gears and drive it around on highway type roads and merging on interstate, drag strip 1/4 , carve a slalom track = and evaluate, is it worth the cam and custom cross long tube intake (fits under hood mostly or without) or just use a performer rpm and comp hyd roller?
500 hp with out much trade off is damn solid
I think someone had the best idea for a hot street small block for about any make
Just aim for 10-10.5:1 compression and 2 cfm per hp with aluminum heads and it should be very fun on the street with a 3000 or so stall.
Nothing exotic and its more than plenty for most people
As far as mild combos go, An 882 head is def a boat anchor unless you try to shave it. Horsepower monster I believe did that and still couldnt make past 380 with porting and bowl work screw in stud conversion. I had them on a 305..big. Mistake lol
Id just get the dart vortects at that point. All the great vortec atuff with theout the spring limits. And screw in studs
@Taylor Rutter yeah back 20 yrs ago when I did the 305 I wish I did that.
What I really should have done was ditch the 305 and had gotten a 350 like people had said.
Oh well now I have a 302 looking to go 347 ford because its easier to make more compression with a longer stroke and if I do a Chevy again it will also be a stroker
Hey Richard, I know this video is a bit older, would you mind disclosing what the cam used in the “wild” setup was? Thanks! Love the videos and the knowledge you share!
Comp xr294hr found it, thanks!
Also remember that the vortec heads have press in head studs and screw in studs are needed for most aftermarket cams and can be installed by any machine shop also I would of liked to see the big afr heads with the rv cam that way we can see what can be had with a great set of heads and a small cam many people think that to much head is a bad thing but in my experience it’s nice to have a car that drives and idles great in all conditions even with ac on and have the heads carry the cam higher up higher in the rpm and have the cam do the work down low please do a test showing a small cam with awesome heads to show no loss down low and nothing but gains it not make as much peak but no losses thru the rpm range in a street car that is super smooth and see if the loss wouldn’t be much down low also what was the wild cam specs i don’t think you let us know and I think it’s a good idea to let everyone know that many times vortec heads are cracked at the junk yard be very careful preferably get them from summit or jegs
Richard, I would like to see a test using a single plane intake on a mild SBC combo. I'm running multiport EFI on my SBC but dual plane EFI intakes aren't really out there for a 4150 style throttle body. I know my combo is severely mismatched now with the single plane RHS EFI manifold as it seemed to run a lot stronger back with a carb and a Performer RPM. Keep up the great work!
Got to love the old school stuff. :)
Spend a fortune, to get less power than a cam swapped LS. Not to mention losing all the fuel efficiency, reliability, durability, and leak free gaskets of an modern motor. Old school stuff is trash.
Thanks Richard!! For not burying the SBC for the favoring LS motors, and doing different engines also.. And those AFR 195 move some air 290cfm@.600 lift. I suppose you used the 65cc heads?
Hey Richard! Finally putting my 60 over sbc together with 9-1 compression, afr 180 heads and a howards retro roller cam with 213/217 @ .050 and 485/495 lift on a 110 lsa. I hope it runs strong!
How did it turn out, I’m currently building a sbc 360 and was looking at the Afr 195,cam is where I’m stuck on
You are outdoing yourself. Thanks for the education. Can you build a smallblock 400? I'm curious to see what you come up with combination wise. I'm running brodix track 1 heads and a solidroller cam in a street/track car. Do your magic . Again thanks for sharing your knowledge and experience.
I have a 400 we did that made over 600 na hp and over 800 hp with a blower
@@richardholdener1727 hello Richard, I'm the guy tht asked how can I get ahold of u other than utub. And this is the exact reson y I want to talk to u, I have a 406 ci and I would like for u to give me some help on how u got tht 600 hp out of It just bning NA ???? please help me out, I'm building this for my son's graduation gift and he graduates this year so please can u hit me back n let me know what the combo was u put together to get tht 600 hp out of tht 400 ci block 🤷♂️ like I said I have a 406 cause the pistons tht I took out if the 400 r .030 over, but I would build it ever how u tell me to, to get tht 600 hp out of It 🙏 I was gonna ask the specs and # on the cam u used in tht "wild" build ??? I didn't c u put the cam # up for the wild build.. anyway I hope to hear back from u please sir ?? I know u know thts y im asking u, any help would b greatly appreciated 🙏🤙 and keep up the great content Mr. Holdener
I'm most impressed with the rv cam and ported 882s. That is almost as much power as any factory sbc with a lot less camshaft and compression.
I know this is a year old, but the prices for a cheap/inexpensive head and a set of vortec are pretty minimal now. Assuming you pick a set of Vortec up for $100 and send it out for servicing (if needed), manifluxed, and cleaned your already $200 - 300 into the heads. Then add in new springs, even doing it yourself, another $100-150 your at around $500 - $600 and that a hope and a prayer for quality check and reliability. I haven't actually been able to hit that price as at least one exhaust guide is jacked and most valves (at this point do them all) need resurfacing etc. My point is the cheap speedway, FloTec and/or AFR's end up being about $50 more when it's all said and done.
For longevity I tend to lean towards the AFR as casts myself, but most people aren't going to put 100k miles on a motor putting out decent numbers: IE Not a daily driver, most of those daily drivers are LS swapped for power AND fuel milage. The first "mild" motor is a great truck/S10/2 bolt main combination with a set of the cheaper heads as mentioned along with used/cheaper intake. Meaning a great use of the TBI 350's you can literally get for $100-200 bucks right now. Less then a $1000 on a complete short block with cam: Polished Crank, rods checked and done up, pressed on new pistons, block bored and honed, block cleaned, block decked (if needed), cam bearings installed. Assuming you'll assemble the rest yourself. What really would be left is heads, any tin(s) you can't reuse, intake, HEI, and carb. Really should be less then $3k easy and SHOULD get you 80k in miles with 350ish HP and over 400 ft lbs in TQ, tuned right smoke most of the idiots out there with $10k dropped in an untuned but been dyno tuned crap.
Folks it takes a lot of time and money to swap out all the stuff on these motors that he’s doing , just a note, information is powerful
Hey again Richard, thanks for letting me know the brand of Dyno headers. Ok, in a nutshell, I keep evolving (changing) my 327 Sbc build as I dig deeper into the math/engineering of actually building an engine and understanding why things do what they do. Stock rods, cast pop-up pistons (3.2cc), 492 dh virgin heads rebuilt to 2.02/1.60, bronze valve guides, 11/32” stainless Fererra? Valves, bbc 7/16 studs and guide plates, not unshrouded yet, 8.44:1 dynamic comp, .015 steel head gaskets, Weiand 7508 single plane, comp cams 12-705-8 solid roller, lift .575, adv duration 300/300, @ .050 255/255 single pattern, comp ultra pro magnums…dyno programs tell me 377hp. What would be the biggest head upgrade (aluminum cnc ported head) that you would suggest to get the max hp and rpm’s without different rods and pistons to have a once in awhile Street car/show vehicle that spends the most time (maybe 200-300 miles a year) on a road course/drag strip. Thanks 🙏 Tony
pick a different cam and add afr heads as shown in the 327 upgrade video (it will be well past 377 hp)
@@richardholdener1727 thanks again for a reply Sir! Sooo, you’re telling me that my cam will not work well with the AFR heads? I’m confused on this one. If it’s not the right cam, why, and what do you suggest for maximum effort considering my short block internals limits. My engine guy and aftermarket performance business owner hasn’t warned me against this cam even after I mentioned wanting to upgrade to Brodix or AFR CNC heads. He’s already got my money but is always willing to let me trade parts if still in the box. Which they are. I know you have a million of us gear heads asking questions so I understand if you don’t get back to me. I’m just honored to get help from someone with your knowledge! This Veteran thanks you for taking the time to help your fellow Americans and people everywhere. 🫡🇺🇸
Loving the forgotten SBC in LS land. How about with changes settle the age old 5.7/6.0 inch rod debate same everything including compression. Thanks for keeping your channel great!!!
I have a 327 with a 6.0 rod,it rips but don’t know what it was like with the stock 5.7 rod
I ran a back to back rod test on a 350 and 327 and 302 (had to change them all), no difference in power with the rod swap
Richard Holdener that stinks,so the 5.7 rod in my 406 means nothing also I am assuming
Awesome video Richard. Now I
What we’re the specs on the bottom end? I know you said forged pistons. But was it a stock block, crank, and rods?
Absolutely love the videos n how thoroughly you test.
I still love the oh so simple SBC
Love the video and thanks Richard for answering my cam/head question the other day
Which HR cam did you use with the AFR heads? Thanks
*Nevermind. I found your answer on another question. XR-294HR*
I would love to see a 350 with Comp Cam Xtreme energy 268 versus the Lunati voodoo 268 cam
I grew up in the "smogger years " and I love how you show the POS 2 bbl and quadrajet (We used to call them quadrajunk ) .I want a vid on how YOU would build a 400 hp junkyard motor for way less than a crate. Perhaps 500HP. REAL cheap. 2K perhaps ?
I did 400 hp for $1K-500 hp is a lot harder unless nitrous
@@richardholdener1727 you happen to have a link to that handy?
Thank you for these videos.great job
Excellent job like the old school gen 1 sbc stuff. I still have good cores left. It would be interesting something like this on BBC IV 396 or 402. Or like my next project a 540 BBC with only 9:00 CR that will hopefully run on 87 octane.
Richard , the king on content !
I'm about to have a 388 stroker build with afr top end kid. I'm hoping to get this kind of horsepower.
Once again , thanks Richard for all you do in testing. My question is, I noticed this motor had a tci balancer on it. Are you seeing any gain in hp or just smoothness in the motor or even more valvetrain stability with this balancer. Elaborate a little if you can! Thanks. P.S. That dip at around 4,000 rpm is indicative of to wide a lobe separation. Tighten that sucker up to a 107 or a 106 and let er rip.
Nice builds
Great job! Awesome info and well explained. Can you do the same thing with forced induction? 3 builds of mild to wild roots or centrifugal would be incredible.
It would have been interesting to know the compression ratio of all the combinations as it affects cylinder pressure, torque, and horsepower.
The actual compression ration will not change just because of the cam
So... what was the first hyd. roller camshaft that you used? I know that it was a Comp Cams retro fit, but, which one? And... did you run the 1.52 or 1.6 rockers? Love the high torque numbers with the 350 c.i. and hyd. roller , but, I dont personally need the 500 hp. I'm building a ZZ shortblock with almost the same bolt ons (heads, intake and such). Thanks, Jim
Found it down below in the comments and answers! Comp XE294HR...
yep
It would be interesting to see a "Chinese Power" test, where you used Chinesium garbage heads, intakes, rockers, carbs, etc etc. These parts lack any trustworthy data, but are really tempting to people on a budget! Reliable, trustworthy data from someone like you would help a lot of folks make sound power decisions on parts.
promaxx has a good reputation. probably the best out of the import heads.
We need more videos like this
Great info. Motivates me to get my engine built.
Do you have any comparison tests with the vortec heads? Like diferent cam's or intakes?
From my own experience, if you're going to run vortec heads, keep valve lift under .550 (they have to be overhauled to support anything over .450 lift) and stick to a dual plane rpm air gap. .525 lift max would be better. They're great heads but they definitely have limitations. 170cc (I believe that's what they have) intake runners will only go so far. Been almost 20 years since I had these heads on a motor so I may be off. But not too far off. Cheers
Was thinking of taking my vortec heads off my 5.7 and put them on my 400sb along with cam-lifters, intake,headers etc.. Low budget build