I had a 406 like this with vortec heads and a hydraulic flat tappet cam " Duration 288/298, Lift .444/.466". I had a Holley dual plane 300-36 intake manifold and a 3310 750 Holley carb. I think the heads were totally stock with maybe some matterial machined off the spring retainers if I remember right. On the dyno it made 420 hp @ 5300 rpm and 498 ft pounds of torque. I loved this engine it was super responsive and great on the street.
I build a 409 sbc off the magazine super Chevy I think. It was called 406 impersonator. Stock Vortec heads a Lunati bracket 2 cam. An made 428 HP an 525 of torque. This motor is so fun to drive in my 86 square body. The nose never goes down until I get off the gas. I pulled over 5 tons with this motor an never had a problem.
I like that cam, it's the one that Dan from Hatch's Recreational Engineering channel used in his sbc 307. He swapped on a set of the EQ Vortec 305 heads and a genuine imitation RPM Airgap dual plane intake topped off with a Holley 600 double pumper. All factory bottom end. The best time he ran so far is 13.8 in the QM. He was having problems with the th350 not being able to rev more than 5,800 I think he wrote where he had to shift. He could hold it past 6,300 in second where he crossed the finish line in. He has a 3.73 rear gear. Once he gets the transmission sorted out he should be in the low 13s. Pretty dang good for a engine people consider a boat anchor. I think he has less than 1,600 bucks US into it and that includes the purchase price of the engine which included the th350 transmission. Made for a very fun budget driver.😎👍
I just finished building my vortec 406. This one has a off the shelf Howard's hydraulic roller part# 111145-10. I haven't fired it up yet. My first one I bulit had a soild flat tappet xs282s comp cam that decided eat itself. It made great power until i noticed the cam was going bad. Both engines have flat top four valve relief pistons. I was able to run 93 octane at 34* timing without pinging.
Sounds like a good combo, Enough compression without causing issues and much the same with the camshaft. Should make heaps of low-end & midrange torque, and I suspect it might rev out enough. You shouldn't need to spin a 400 to the moon to get things done. This should push a porky truck around OK with a 3.08 axle with enough on tap to get you into trouble if you so choose!
I`ve used 3 pairs of ProMaxx heads and I always flow them, You can`t beat the price. Every head was %10 below advertised flow. Eric Weingardener( u-tube) got the same results. I bought a set of 200ccMax sbc`s 377cc shocker BBc heads and a set of 235cc shocker sbc heads, none of my customers were dissapointed with the results from the dyno, they were all pump gas engines. the lowest power was 500hp the highest was 750hp, they were worth the money..The 200cc Maxx heads were thier marine heads and had a super smooth black shiny finish in the ports under the valve covers and the water jackets, they looked great.
425 hp 410 Can't wait to see dyno ! Nice build I have a 383 build right now also have a standard bore 400 never been apart in storage you got my wheels running might get on the 400 next,Always Thanks for sharing your knowledge 😊😊😊
I like the cam selection, but I’d like it more if it had 10-1 compression lol But…. I get the intention of this build. I think this engine combo will surprise a lot of people 👍🇦🇺
We literally just built the same motor two weeks ago and put it into my buddies Camaro 408sbc 10.5 compression, ported vortec heads, air gap intake 4/7 swap summit cam, 750 holley.. runs on 93oct.. sounds good and rips
@@cuttersperformance yessir that’s the one. I definitely believe 406 ci would make that cam more street friendly. I’m running 230/236 .490 lift 110 lsa In my s10 with a 350. My power brakes work just fine.
Power wise I'm thinking. 500 lbs ft of torque and 425 horsepower. Sure can't wait to see. Flat tappet cans are great when you get good cam cores and don't forget to about the zinc😊.
I'm currently building a 406 vortec, flat top pistons with valve reliefs and the comp cam 12-242-2. This is a similar build. Interested to see what it makes. I'm also running the flat tappet and 1.5 roller rockers
like dajavu. I've got a 400 stock bore stock rotating assembly with rod and main bolt upgrade. Custom comp hyd roller 227/232 520/520 110+2. 14in vac @800 rpms 062s with 60cc chambers 9.24 to 1. 2.00/1.57 pac beehives morel retro lifters. Edelbrock no gap performer rpm. 870cfm vac sec street avenger. 1 5/8 longtubes with 3in x pipe to 4in-7in x 28in diesel blow through mufflers on 87. Timing locked out at 38 degrees if I remember right. Made 527hp @5400 480lb ft @4000 870 street avenger picked up 22hp/18lb ft over a 750 cfm vac sec (old popular holley) oh and
Cam specifics wont matter as long as its BIG. Use as much lift as the valve, retainter, seal combination will tolerate. Thr engines is gonna saturate the heads no matter what you do and if you use stock retainers and valves the lower valve groove for the seal ring is going to interfere with any positive valve seal or unbrella with pretty low lift so unless you're happy with old fashioned deflectors and square profile seal rings then you aren't really going to have the ability to over cam the engine.
technically mines an externally balanced .020 over 400 so 403 (509 block). 062 vortecs shaved to 60cc, thick as a book head gaskets, keith black replacement dished pistons. intake is an edelbrock 2116 with a 1 inch spacer. carb is holley 770 avenger. Cam is an ancient comp magnum 280 . PAW cheapy1.52 roller rockers. 1.75 inch long tubes. 3.42 rear.Trans is a super t10 and most of the time i leave it in 3rd ,its like a 1 speed trans. 1st gear is useless so all launches are 2nd gear and still hairy. Already on the 2nd 4 spd.
About 450 hp. I'm not gonna harp about the flat tappet cam. I'd never do it because I'm in the middle of Asscrackistan, Saskatchewan. So everything has to be ordered in at the parts store. Im not waiting a day to 3 days to get an oil change done, or I'm driving to another city to pick up things. About the use of vortec heads. Everyone and their dog thinks they are worth gold around here. What are your thoughts on doing a set of the knock-off, bare dart shp heads budget like. (as in a guys garage with hand tools) as believe it or not those are a cheaper option then finding a set of used vortec heads and then having to go through them. Shipping is killer here in Canada or I'd order some off the interwebs
@JimBronson would love some, but way out of my budget, the knock off dart heads ( sold by DNA motoring)bare about $270 a head my price plus shipping, where as people are asking upwards of $800 for vortecs. It's almost worth parting out vehicles to get what you're after now a days in my area
I'm in Canada too, so I understand the frustration. Vortec heads have gotten expensive (everything has). If you seen some of my videos like the youtube 355. It uses a set of budget aluminum heads and made around 440hp, or one I did a few months ago with a flat tappet cam and it made just over 400 with similar heads
@cuttersperformance I came across your channel about a month ago after I got a set of cheap (read need rebuilt) garrett gt2860-5 turbos which would do alright on a 283 I got on the floor. I've watched a few of your videos, starting with that dingle ball hone with the 7875 on it. Im slowly putting together a list of parts for after I'm done my 3rd year. I'll do some more digging when I need a break and a beer from studying. Thank you.
i've never seen one out in the wild. People want serious money for them and a 6.0 LS will make more power for less money. That being said, I would really like to build a 400SBC, maybe even spend the money and make it a 427/434.
@@johndelta00 I've seen em in full size vans at the wreckers, buddy built up a 377 using a 3.48 stroke crank and dropped it in a Monza, it was mildly terrifying.
Speaking of a cam lobe that went bad, do you recommend blocking off the oil filter bypass or is it a bad idea? I know not to rev it up when cold, and it barely ever gets to freezing where I live. Thanks, looking forward to this build! The world needs more 400 small blocks.
I'm nobody, but I'd love to see a larger SBC like this built for NO STALL CONVERTER. For the truck guys, the towing guys, that can't afford a crazy expensive new 3/4 ton. Flat tappet would probably be fine since you can't get a ton of lift anyway with no stall converter. 87 octane would be great too. Maybe it wouldn't make good clickbait b/c the HP just wouldn't be there, but it would be really nice to see the limits of big cubes, but small lift, for towing.
All the sbc 395--400 cuin builds I`ve seen with Vortec / 180c heads with a street style cam produce alot more torque vs hp OR have very close hp/TQ outputs,,[pending heads /cam combo ] . A 395 with a HR 230/236 /110 lsa , Afr street 195 head 4bbl SP manifold 7530 weiand 490tq /495hp GM really missed the BIGGEST opportunity to give the 400 legend status
On those new rocker arms you have here. Have you tested the accuracy of the lift? Do they lift the 1.5 or 1.6 ratio they claim to be? I've seen a few videos showing how some rocker arms don't lift what they claim to do. Being these wre most likely China imports, do they meet the lift they claim?
I believe it will make more torque than HP but both will be over 400, peak torque 4500 peak Hp 5600. Just educated guesses , I have zero experience with Vortec heads
Morning when you install the 47 swap cam in your motors did you leave the timing marks straight up on the chain/sprockets and is the 2° advanced ground into the cam they advertise thank you
With the compression and does it have the stock 400 rods iim thinhing about 440 hp 430 torque i think the compression and stock rods with that small cam is going to hold it back.
I like your channel and I like this 406 with the Vortec heads, but I have to ask, what is your method for picking cams? You say you want a cam with low end power and streetability, but did you notice your cam has 75 degrees of overlap?? Your gonna kill any and all low end torque. This engine probably won't start building power until 3500-4000 rpm. That's one hell of a street motor! But, if you follow DV's advice and use his formula, a more efficient cam for your build would have about 103-104 degree LSA and about 40-55 degrees of overlap. You'll get a little less duration, but better idle and way more power under the curve. That is where you want street power. Just my two cents, can't wait to see how it does!
You gotta remember his overlap recommendations are based on a 350. This cam with the same compression but in a 350 will act very different than it will in a 406. I was actually looking for a cam with 71 to 72 deg of overlap. I wasn't going for maximum street manners in this build as that would sacrifice too much power. I was going for power brakes friendly (12+ inches of vac), 87 octane and tons of torque. If it doesn't have enough vac and idle, I was thinking about trying rhodes lifters on this one 🤔
@@cuttersperformance sounds good, but if you don’t quite get what you want numbers wise, I would contact Mike Jones and fill out his form and find out what his recommendation would be for a cam. He can design one for your specific engine combo. The problem I see is, you have way too much bore and way too small intake valve for your application. Still looking forward to see what it does! Best of luck with it!
I've always wondered: is 4/7 swap firing order cams only for single plane intakes, or is it okay for dual plane, too? I would definitely not want to do something that would be bad if used with a dual plane intake. Also, is the 4/7 swap the same thing as LS firing order or is that yet another variation? Thanks!
I want to see someone do a shootout between a modern intake even an air gap style and a Holley 300-36 to see if it's as good as people say, I picked up a nice condition old 300-36 contender for $100 and I can say it has nice large looking runners, I'm replacing an old og torker hoping to get a little more flow and little more low rpm TQ even tho the torker worked great it really did even tho so many parts are generalized in forums as great or terrible when there neither there just pretty good and not even close to toss in the dumpster category. And most times these "experts" will make a judgement on a part when they have ZERO personal experience with it not theirs or anybody they know.... They are just regurgitating some statement someone else made and there are so many that's mindset of if it's not the tippy top dog performing part it's garbage... I love it when someone who has had a good experience with these parts pipe up and set them straight saying no you don't know what your talking about and have real world info and these haters have no data or experience to argue back with and they usually either argue with lies in an attempt to save face or just quiet down and hope no one remembers there BS attempt at being relevant, mostly forums are terrible places to get advice so often people want advice and everyone says don't bother buy this and they say I can't afford that and I already have it and over n over people just crap on it and say go with this instead... Do they not understand what is going on? Help them make the best of what they have or shut up.
I had a 406 like this with vortec heads and a hydraulic flat tappet cam " Duration 288/298, Lift .444/.466". I had a Holley dual plane 300-36 intake manifold and a 3310 750 Holley carb. I think the heads were totally stock with maybe some matterial machined off the spring retainers if I remember right. On the dyno it made 420 hp @ 5300 rpm and 498 ft pounds of torque. I loved this engine it was super responsive and great on the street.
What timing were you running? I have a very similar combination I'm trying to get dial in
I build a 409 sbc off the magazine super Chevy I think. It was called 406 impersonator. Stock Vortec heads a Lunati bracket 2 cam. An made 428 HP an 525 of torque. This motor is so fun to drive in my 86 square body. The nose never goes down until I get off the gas. I pulled over 5 tons with this motor an never had a problem.
I love the flat tappet cams, despite what others say.
I like that cam, it's the one that Dan from Hatch's Recreational Engineering channel used in his sbc 307. He swapped on a set of the EQ Vortec 305 heads and a genuine imitation RPM Airgap dual plane intake topped off with a Holley 600 double pumper. All factory bottom end.
The best time he ran so far is 13.8 in the QM. He was having problems with the th350 not being able to rev more than 5,800 I think he wrote where he had to shift. He could hold it past 6,300 in second where he crossed the finish line in. He has a 3.73 rear gear. Once he gets the transmission sorted out he should be in the low 13s. Pretty dang good for a engine people consider a boat anchor.
I think he has less than 1,600 bucks US into it and that includes the purchase price of the engine which included the th350 transmission. Made for a very fun budget driver.😎👍
Oh yeah, he also running 1.6:1 roller rockers too.😎👍
Gotta love the budget builds!
@@cuttersperformancelittle home work can go along
way$$$$$! Thanks for doing what you do Pat 👍🏻
I just finished building my vortec 406. This one has a off the shelf Howard's hydraulic roller part# 111145-10. I haven't fired it up yet. My first one I bulit had a soild flat tappet xs282s comp cam that decided eat itself. It made great power until i noticed the cam was going bad. Both engines have flat top four valve relief pistons. I was able to run 93 octane at 34* timing without pinging.
Love this! Cannot wait for the dyno runs!
Love budget builds! Love to see a good truck build
Very informative as usual Pat. Looking forward to the dyno results. I love my engines to have plenty of torque.
I have a voodoo cam in my 406 with vortec heads (227/233 @ 050 on a 110 lca) and it pulls 15 inches of vacuum.
Sounds like a good combo, Enough compression without causing issues and much the same with the camshaft. Should make heaps of low-end & midrange torque, and I suspect it might rev out enough. You shouldn't need to spin a 400 to the moon to get things done. This should push a porky truck around OK with a 3.08 axle with enough on tap to get you into trouble if you so choose!
I can't wait to see and hear it sounds like something I would like in my towing / plow truck 👍👍
Extremely nice build and very nice shop.
That cam is going to make that engine a true stump puller. 👍 You may need to add to the nickname.
Swap Meet 406 Tire Fryer!
Good ring to it
I`ve used 3 pairs of ProMaxx heads and I always flow them, You can`t beat the price. Every head was %10 below advertised flow. Eric Weingardener( u-tube) got the same results. I bought a set of 200ccMax sbc`s 377cc shocker BBc heads and a set of 235cc shocker sbc heads, none of my customers were dissapointed with the results from the dyno, they were all pump gas engines. the lowest power was 500hp the highest was 750hp, they were worth the money..The 200cc Maxx heads were thier marine heads and had a super smooth black shiny finish in the ports under the valve covers and the water jackets, they looked great.
Very cool 🤙 I'm just wrapping up a full roller 406 in my twin turbo 64 impala.
425 hp 410 Can't wait to see dyno ! Nice build I have a 383 build right now also have a standard bore 400 never been apart in storage you got my wheels running might get on the 400 next,Always Thanks for sharing your knowledge 😊😊😊
I love it .can't wait to hear it cam out
great buget build looking forward to this dyno video thanks.
Yessir 406 and vortec heads ❤️🔥👌💪👍🏻👏💯
435/475 tq. I got the same build sitting on the stand, and I have been waiting for your build for cam choice
I like the cam selection, but I’d like it more if it had 10-1 compression lol But…. I get the intention of this build. I think this engine combo will surprise a lot of people 👍🇦🇺
We literally just built the same motor two weeks ago and put it into my buddies Camaro
408sbc 10.5 compression, ported vortec heads, air gap intake 4/7 swap summit cam, 750 holley.. runs on 93oct.. sounds good and rips
What did you use for the head gaskets
@garykirby7123 felpro.. factory gaskets for a 400 sbc..as you need the holes for gas venting
Can’t wait to see this one on the dyno !!
Yesssssssss 406!!!!!!
I like Ford too, the cool thing is I gave a thumbs up / like and it was # 347, so cool seeing as this comment is about the 347 build...
Nice build so far. I’d be curious to see what that flat tappet used in the original dingle ball would do in this 406. It would be a little tamer.
The other summit cam? I was considering it but it still wouldn't be power brake friendly on this engine
@@cuttersperformance comp cams 12-330-4 it was an oval track flat tappet.
236/244 @ .50
.490 lift intake
.485 lift exhaust
108 Lsa
@thabiznizz o yes the OG cam
@@cuttersperformance yessir that’s the one. I definitely believe 406 ci would make that cam more street friendly. I’m running
230/236
.490 lift
110 lsa
In my s10 with a 350. My power brakes work just fine.
Power wise I'm thinking. 500 lbs ft of torque and 425 horsepower. Sure can't wait to see. Flat tappet cans are great when you get good cam cores and don't forget to about the zinc😊.
I'm currently building a 406 vortec, flat top pistons with valve reliefs and the comp cam 12-242-2. This is a similar build. Interested to see what it makes. I'm also running the flat tappet and 1.5 roller rockers
This is a killer build! Can't wait to see some numbers. What piston are you using, KB?
Stock dished replacement federals
Ouuu I've been wanting to do a 406 for my 98 Silverado....
like dajavu. I've got a 400 stock bore stock rotating assembly with rod and main bolt upgrade. Custom comp hyd roller 227/232 520/520 110+2. 14in vac @800 rpms 062s with 60cc chambers 9.24 to 1. 2.00/1.57 pac beehives morel retro lifters. Edelbrock no gap performer rpm. 870cfm vac sec street avenger. 1 5/8 longtubes with 3in x pipe to 4in-7in x 28in diesel blow through mufflers on 87. Timing locked out at 38 degrees if I remember right. Made 527hp @5400
480lb ft @4000
870 street avenger picked up 22hp/18lb ft over a 750 cfm vac sec (old popular holley) oh and
In a 78 4 speed k30 with a dump bed lol it's so much fun to drive. Way better than the 305 quadrajet the 400 replaced lol
Those are great results!
Excellent videos sir.
This project will be a great vortec comparison/answer to the GM head, 406" stock bottom end (youtuber) DZ Performance did.
I'm running the same cam in my 355.
My 355 also has a set 062 vortec heads off a 602 crate motor. They have the beehive spring upgrade.
Cam specifics wont matter as long as its BIG. Use as much lift as the valve, retainter, seal combination will tolerate. Thr engines is gonna saturate the heads no matter what you do and if you use stock retainers and valves the lower valve groove for the seal ring is going to interfere with any positive valve seal or unbrella with pretty low lift so unless you're happy with old fashioned deflectors and square profile seal rings then you aren't really going to have the ability to over cam the engine.
Running a similar combo in my zed. It will be a hair over 400hp. Torque over 500 ft lbs id imagine.
technically mines an externally balanced .020 over 400 so 403 (509 block). 062 vortecs shaved to 60cc, thick as a book head gaskets, keith black replacement dished pistons. intake is an edelbrock 2116 with a 1 inch spacer. carb is holley 770 avenger. Cam is an ancient comp magnum 280 . PAW cheapy1.52 roller rockers. 1.75 inch long tubes. 3.42 rear.Trans is a super t10 and most of the time i leave it in 3rd ,its like a 1 speed trans. 1st gear is useless so all launches are 2nd gear and still hairy. Already on the 2nd 4 spd.
450. It's typical build done throughout the ages. It will rev higher than peak hp. It would benefit from a slightly larger stall. 2000 stall minimum.
I seen a guy with that cam in a oldschool mustang with 4 speed and it ran great...I believe it was a 305 or 302??something of that nature.
440 hp 480 tq
Didn't catch how much compression but if it's 10-11:1 I definitely agree. 440/480 @ 6,200+-
415 hp and 475 tq, peak torque at 3900 and peak hp at 5200. Would be more torque with more compression. 10 to 1 I think would be over 500 ft lbs.
About 450 hp. I'm not gonna harp about the flat tappet cam. I'd never do it because I'm in the middle of Asscrackistan, Saskatchewan. So everything has to be ordered in at the parts store. Im not waiting a day to 3 days to get an oil change done, or I'm driving to another city to pick up things.
About the use of vortec heads. Everyone and their dog thinks they are worth gold around here. What are your thoughts on doing a set of the knock-off, bare dart shp heads budget like. (as in a guys garage with hand tools) as believe it or not those are a cheaper option then finding a set of used vortec heads and then having to go through them. Shipping is killer here in Canada or I'd order some off the interwebs
AFR 190/195 all day over the vortecs
@JimBronson would love some, but way out of my budget, the knock off dart heads ( sold by DNA motoring)bare about $270 a head my price plus shipping, where as people are asking upwards of $800 for vortecs. It's almost worth parting out vehicles to get what you're after now a days in my area
You do know Pat is in Canada as well...
I'm in Canada too, so I understand the frustration. Vortec heads have gotten expensive (everything has). If you seen some of my videos like the youtube 355. It uses a set of budget aluminum heads and made around 440hp, or one I did a few months ago with a flat tappet cam and it made just over 400 with similar heads
@cuttersperformance I came across your channel about a month ago after I got a set of cheap (read need rebuilt) garrett gt2860-5 turbos which would do alright on a 283 I got on the floor. I've watched a few of your videos, starting with that dingle ball hone with the 7875 on it. Im slowly putting together a list of parts for after I'm done my 3rd year. I'll do some more digging when I need a break and a beer from studying. Thank you.
What kind of luck are folk having finding a good 400 SBC block these days. They are getting on.
i've never seen one out in the wild. People want serious money for them and a 6.0 LS will make more power for less money. That being said, I would really like to build a 400SBC, maybe even spend the money and make it a 427/434.
Seem to be getting harder and harder to find good ones
@@cuttersperformance sounds like you got one!
@@johndelta00 I've seen em in full size vans at the wreckers, buddy built up a 377 using a 3.48 stroke crank and dropped it in a Monza, it was mildly terrifying.
What are the part numbers for the valve springs. Retainers and locks you are using here thank you.
Future video but check this video if you haven't see it for setting up vortecs
ruclips.net/video/UZosxGQyGMs/видео.html
Speaking of a cam lobe that went bad, do you recommend blocking off the oil filter bypass or is it a bad idea? I know not to rev it up when cold, and it barely ever gets to freezing where I live. Thanks, looking forward to this build! The world needs more 400 small blocks.
Definitely, always plug them on a fresh rebuild. Your bearings will thank you
Heck yea!!! What toolbox is that though?
Old Mastercraft box. My first box I bought when I was 17 lol
I was thinking the same thing, I like the way the top is...
I'm nobody, but I'd love to see a larger SBC like this built for NO STALL CONVERTER. For the truck guys, the towing guys, that can't afford a crazy expensive new 3/4 ton. Flat tappet would probably be fine since you can't get a ton of lift anyway with no stall converter. 87 octane would be great too. Maybe it wouldn't make good clickbait b/c the HP just wouldn't be there, but it would be really nice to see the limits of big cubes, but small lift, for towing.
All the sbc 395--400 cuin builds I`ve seen with Vortec / 180c heads with a street style cam produce alot more torque vs hp OR have very close hp/TQ outputs,,[pending heads /cam combo ] .
A 395 with a HR 230/236 /110 lsa , Afr street 195 head 4bbl SP manifold 7530 weiand 490tq /495hp
GM really missed the BIGGEST opportunity to give the 400 legend status
On those new rocker arms you have here. Have you tested the accuracy of the lift? Do they lift the 1.5 or 1.6 ratio they claim to be?
I've seen a few videos showing how some rocker arms don't lift what they claim to do. Being these wre most likely China imports, do they meet the lift they claim?
The 1.6 assaults were bang on
@cuttersperformance thank you!
Have tou ever built a high torque engine with tbi heads?
I believe it will make more torque than HP but both will be over 400, peak torque 4500 peak Hp 5600. Just educated guesses , I have zero experience with Vortec heads
Why don't You try those rhoads lifters now?
I was waiting for someone to ask that lol
Morning when you install the 47 swap cam in your motors did you leave the timing marks straight up on the chain/sprockets and is the 2° advanced ground into the cam they advertise thank you
With the compression and does it have the stock 400 rods iim thinhing about 440 hp 430 torque i think the compression and stock rods with that small cam is going to hold it back.
I like your channel and I like this 406 with the Vortec heads, but I have to ask, what is your method for picking cams? You say you want a cam with low end power and streetability, but did you notice your cam has 75 degrees of overlap?? Your gonna kill any and all low end torque. This engine probably won't start building power until 3500-4000 rpm. That's one hell of a street motor! But, if you follow DV's advice and use his formula, a more efficient cam for your build would have about 103-104 degree LSA and about 40-55 degrees of overlap. You'll get a little less duration, but better idle and way more power under the curve. That is where you want street power. Just my two cents, can't wait to see how it does!
You gotta remember his overlap recommendations are based on a 350. This cam with the same compression but in a 350 will act very different than it will in a 406. I was actually looking for a cam with 71 to 72 deg of overlap.
I wasn't going for maximum street manners in this build as that would sacrifice too much power. I was going for power brakes friendly (12+ inches of vac), 87 octane and tons of torque.
If it doesn't have enough vac and idle, I was thinking about trying rhodes lifters on this one 🤔
@@cuttersperformance sounds good, but if you don’t quite get what you want numbers wise, I would contact Mike Jones and fill out his form and find out what his recommendation would be for a cam. He can design one for your specific engine combo. The problem I see is, you have way too much bore and way too small intake valve for your application. Still looking forward to see what it does! Best of luck with it!
Did you drill the heads for steam holes even though they’re a pretty light casting already?
Yes I did
I'm building almost the same engine same heads and same exact cam just a little more compression 10.48:1 I was wondering what lbs springs your using
Summit LS6 beehives (they are about 90lbs on the seat)
I’d be interested to know if they make a truck Norris cam for an early model Chevy motor
👍👍
480hp. Would be a fun motor
I have a lunati 525/540 lift flat tappet cam, i going to run in my 406, steel roller rockers and flattop pistons, 200 etec heads
I will predict 420hp and 475 tq.
406bhp from a 406 would be cool 😎
Update?!
i have a 400 .030 over. its time for a refresh, would it be safe to bore to .040? would i have any issues with doing so?
Most of the time yes, but have it sonic tested
how do you feel about the summit ft lifter that comes with the cam? with a sbc get a ft kit from summit or just the cam and some chevy lifters?
@@terrysmith8133 crap lol
I've always wondered: is 4/7 swap firing order cams only for single plane intakes, or is it okay for dual plane, too? I would definitely not want to do something that would be bad if used with a dual plane intake. Also, is the 4/7 swap the same thing as LS firing order or is that yet another variation? Thanks!
We will be trying both single and dual on the dyno, personally I believe that's a myth. LS is a different firing order
Vortec? I see a promaxx box behind you 😏😜
Haha sbf heads
👍
457hp 511 tq
Nice combo, im guessing 460hp/500tq
Hey Pat. Is this 406 using stock length rods ?
@mikeb4808 yes and stock style dished pistons
When do we see dyno numbers???
I had to dyno another engine first but this one is up next, just waiting to get onto the dyno
530ft lbs @4000
475hp@5400
Pat what are you using for a head gasket on your 406 with Vortec heads??
@garykirby7123 cosmetic MLS gaskets. That's all I will use on 400s
Pat do you remember the thickness?? I also have a 19.5 dish I am worried about the quench
@@garykirby7123 you'll have no quench with full dish pistons
@@cuttersperformance Thanks Pat
@garykirby7123 no problem! With quench, you either shoot for perfect tight quench or zero quench
just fired the 406 with howards 225 231 cam it sounds mean and nasty i really would love to hear thumper cam but i think this will perform better
The 347 Ford should be a fun one. Aftermarket heads let these guys run pretty strong. The low deck height makes them easy swaps.
I want to see someone do a shootout between a modern intake even an air gap style and a Holley 300-36 to see if it's as good as people say, I picked up a nice condition old 300-36 contender for $100 and I can say it has nice large looking runners, I'm replacing an old og torker hoping to get a little more flow and little more low rpm TQ even tho the torker worked great it really did even tho so many parts are generalized in forums as great or terrible when there neither there just pretty good and not even close to toss in the dumpster category. And most times these "experts" will make a judgement on a part when they have ZERO personal experience with it not theirs or anybody they know.... They are just regurgitating some statement someone else made and there are so many that's mindset of if it's not the tippy top dog performing part it's garbage... I love it when someone who has had a good experience with these parts pipe up and set them straight saying no you don't know what your talking about and have real world info and these haters have no data or experience to argue back with and they usually either argue with lies in an attempt to save face or just quiet down and hope no one remembers there BS attempt at being relevant, mostly forums are terrible places to get advice so often people want advice and everyone says don't bother buy this and they say I can't afford that and I already have it and over n over people just crap on it and say go with this instead... Do they not understand what is going on? Help them make the best of what they have or shut up.
Forums are brutal
416hp@5000,482lbft@4000
Hey Pat what exhaust valve are you using ? Vendor/part number thank you
450/490
PAT Hope alas well. I’m gonna say 480/510
Do you check the cam and lifters for correct crown and taper? That seems to be the issue with so many failures.
Yes
ruclips.net/video/BwpNSeTj6Gw/видео.html
@@cuttersperformance I’m an idiot. I saw that video when you put it out. I just forgot it was you who put it out. Love the videos! Thanks!
How much for this engine
505 tq 430 h
435hp 475tq
430🐎/450#'$👍✌️
475hp, 500 torque
I have all these parts except the cam, can't wait until the dyno test!?
428 hp
I would love to see a single plan hirise on it
I will probably try that aswell
453 494