Na is better cus boost is like steroids sure u can perform better but once u take away the steroids or boost ur nothing while a na is like being a solid beast on tap no waiting for raw power I'd rather 1000hp na then 1000hp on boost
I am very surprised with the numbers!! Would fitting these heads on a 454 LSX and a similar compression same intake make 900hp+ so is it all in the head?? This doesnt make sense because the latest big block 632 makes the same as this small block and they always have reliability issues with those Not to mention it is not being reved after 7000rpm Is the cam base circle much larger the usual in order to make high lift without being aggressive because steve doesnt like extremely aggressive cams
@@FirstLast-tx3yj An LS has a 55mm cam so yes, much larger than a BBC. Also, the valve train geometry of an LS is better off the bat than that of a BBC. The BBC is a much older design and thus it just have some different issues. That said, you have to factor in that some of the power here comes from high compression and oxygenated fuel. Also, a 632 is and will always be a bit of an oddball size with some inherent design flaws. There's a reason why many of us choose a 572, 582, or even 598. The 632 has so much windage that oiling can easily become a challenge. If you build a 565 or 582, you can make the same power as reliably as this if you follow the same route. That means 55mm cam, shaft rockers, proper cam design, good lifters, sorted oiling etc. A BBC can outperform an LS both in terms of power and reliability, but you have to build it properly to get rid of some of those inherent flaws and issues of the BBC.
Keep the videos coming Steve love it. What a mean “little “ ls. It would be pretty interesting to throw a carb on it and do a little carb vs efi comparison. Thanks SME
It's funny seeing all the "this is average" comments. It's made 1000hp @ 6800rpm. That's the impressive part!. That's around the rpm most cam/spring/head LS spin to make 500-600hp.
380 cubic inches can get to about 620 ft lb on 12:1 cr. 475 ci is approx 25% more. So thats 775 ft lb. 14:1 is worth approximately 8% more. Thats 825 ft-lb.
@@willr623 I was saying they made an efficient build. You can tell by the torque output. I compared to a smaller displacement but efficient build. If that big motor put out only 600ft-lb i'd say it was inefficient.
@@dennisrobinson8008 Not only that, it runs Q16. There's another 6-7%. Then there's the dry sump system. That's worth quite a lot too. If this was a "regular" build with say BR7 heads, 11:1, pump gas etc. 1.45-1.48 would easily be the torque to displacement ratio. Big heads, high compression, oxygenated fuel, dry sump oiling, etc. all makes a lot of torque, especially if you get the combination right.
This is the kind of stuff I like to see. I wish there were more n/a only race classes. Can I speculate that the cam isnt crazy-wild considering the rpm peaks? Wonder what It would make with lower compression or if you could retard the timing a lot and run on pump gas for driving on drag week. Theres also the e85 option...
I wonder what the power difference would be if you put one of your billet front feed intake manifolds on there for guys who would like to keep their factory style hood.
That is sweet, 1000 nahp in an S10 phew fun fun hold on! canted valve LS heads nice didn't know they existed... Love to seem em on a turbo or na big bore short stroke engine phew it be a twister I'd think.
Come on Steve, you’ve got to have a old vacuum pump laying around! Big stroke like that, even with dry sump, I’ll bet there’s another 25 hp to be had! We did one along time ago with a good crank @ 4.250 stroke, that bastard even balanced properly broke in less than 50 runs! When we repaired we put a Fluiddamper on it, now it lasts awhile, maybe 250 runs before cracks start! Nice job I love all the naysayers who say you cannot get 1000 na out of a SBLS! Tony Bischoff got almost 1100 out of the engine he did for CID! Well if you believe his old dyno!
A properly spec'd dry sump pump can pull 20"+ on an engine like this. Vac pump may not be needed, not saying this one had 20" of vac but it can be done.
Steve what's the best way to do a timing Curve for a msd grid system drag race Na sbc race motor with out a Dyno Have 30 degrees at idle with 36 degrees From 4000 rpm to 9300 shift point. Big cam 292/328 .800 lift solid roller Cam 114 center line. Just switched to computer. Timing control. Thanks Glen
Those heads and intake work well together and the heads work good. I've seen very good SB2 heads making 900hp on a 450ci so these heads are winners and will make heaps of power on boost. How much are you going to destroke? 427ci? Should be making 800-850hp there only need 20psi to hit 2000hp then.
I should hope so... We had 2 different SB2 355 TA race engines that made close to 870.... with an 8600 rpm limit! And that was on a VERY reputable dyno....
That was impressive, when I first saw it I thought was your version of SMSB2.2....How much HP is oxegenated fuel worth, my (customers) engines are not allowed to use it and the ones that can cant afford it (mud truck and airboat) motors. again I appreciate your work.
Anybody know if the injector location makes a difference to power?? I've got a similar design inlet manifold, with the two sets of injector bosses and was going to use the lower ones, hence the question.
Not sure if you know it or not Steve, God has blessed you my friend! That thing is a beast! That officially for me solidifies you as "The best N/A or Boosted!" That a boy!
With all due respect, I must say that the dyno seems a bit optimistic - over 140 nm/liter on a naturally aspirated engine, even one running on C16, while not having to drive the accessories, seems quite high! Even 700 lb ft (equating to almost 120 nm/l) would be impressive, but this seems a bit to good to be true, I must say.
Good point. What made me a little suss of those figures are other small blocks I've seen making similar horsepower with similar cubic inches. They generally have a cylinder head with a 3.2" - 3.8" minimal cross sectional area with camshafts with anywhere from .900 to over an inch of lift. With that cylinder head combo and camshaft they usually make peak HP in the 8200-8500rpm range. For them to do it by 7000rpm, they must be years ahead of everyone out there
That much stroke dictates a longer rod, which pushes the pin high up on the piston. The top of the piston ends up pretty thin so the crown and ring package take a beating from the added heat.
@@DieselRamcharger That is not really the main issue here. The lack of main and rod journal overlap in the crank and the short weak pistons is the main issue. 4.155 is a non-issue on this block as those walls are far from paper thin. If this is an RHS block, it can be bored to 4.200 with its spun iron sleeves.
@@AB-80X you just said that cylinder walls .022" thicker than max bore are a "non issue". hmm. Stroker motors just plain suck. The geometry is bad. All of it....but never mind that.
@@DieselRamcharger That's not remotely "standard". Normally aspirated 475" making 1000 at less than 7k is ridiculously impressive. Most of the time it takes 7500+ rpm to make that much from that size motor.
@@SealofPerfection hp ratings are bullshit. torque is what exists and what is measured. hp is just extrapolated. more to the point. this is a motor that in a chassis will lay down about 750 at the wheels. Its really not that impressive. the motor is right there, right in front of you to see. There is nothing special about it. No magic technologies. No power adders. Just a warmed up LS with bolt on aftermarket parts making typical numbers for the parts selected and installed. the only magic here is Steve knows what parts to pick to get the power he wants. Our SMALLEST motor is 675 at the wheels....this really is not that extreme of a motor. It is, in fact. Pretty Standard. We build a little over 100 cars a year. Thats alot of LS's. Rarely are they under 1000hp. Rarely.
@@SealofPerfection you gotta keep in mind dynos are for comparing engine to engine on the same test bed. not for comparing results of one test bed against another {bench racing} 2hp per cube is really nothing special these days. plus no one is talking about the specifics of the test. ie correction factor. hp claims are in fact. completely meaningless.
For comparison, a Bugatti Veyron uses an 8Lt W16 with 4 turbos to make roughly the same power. (Granted this has way better fuel than pump) But, Did Bugatti miss something? Ps: What a beast.
I'm sure that if you buy a cam or some pistons, he'd share his business secrets for your specific cam and pistons. Don't expect an engine builder to share his proprietary info.
Let me explain what “something about na” means, it’s a highly predictable power response delivered with smoothness and control, even when 1000hp + are through the wheels
You need to open the door a little so we can hear those motors! Your dyno room really contains the noise, which is good for you, but sucks for us viewers...IMO NICE MOTOR!
I like to see the NA engines making good hp. Everyone is all about the boost nowadays and I can see why but I just like a good running NA engine.
Totally agree !!
On one hand that sound is heavenly
On the other hand boost is king considering what it does to engines, so it's not surprising
Building engines that will last and serve well instead of max-boost, self destruct versions.
@@HyperScorpio8688 not to mention a boosted car can have much better street manners than an all out N/A engine.
@@bigboreracing356 no doubt about it!!
Beautiful NA motor. Flat torque curve, 800+lbft, 1000HP @ 7000. Great work.
Love the n.a. stuff. Boost is alot of fun but something about making n.a. power is pretty neat. Nice build!
Na is better cus boost is like steroids sure u can perform better but once u take away the steroids or boost ur nothing while a na is like being a solid beast on tap no waiting for raw power I'd rather 1000hp na then 1000hp on boost
@@jackdaniels2657 but n a is extreeemly expensive
so if you dont have much money turbo is the way to go
@@jackdaniels2657so boost can be magically taken away? No, not how it works.
NA builds are the most interesting builds! Nothing beats the light switch cutting of the throttle!
I really like these vids with a good quick explanation of what it is and why it is along with a pull.
Love ya work mate, these engines are works of art. I'm from Australia love the vids, got hooked watching you and Tom racing drag week.
Nothing will ever sound better than a hi compression naturally aspirated motor with an amazing roller. 💟
we helped develop this head back in 2009,. had the 1st set of the LSR's on a 430ci N.A. combo. made 1053-hp @ 9200
seems like it takes inspiration from a ford nascar Yates style head, or a ford brodix neal cylinder head.
It's simply a Chevy SB2 chamber and port design in an LS package. Maybe the best head out there for mere mortals...
@@raykaufman7156 and the SB2 heads and intakes look suspiciously like small block ford units lol
I am very surprised with the numbers!! Would fitting these heads on a 454 LSX and a similar compression same intake make 900hp+ so is it all in the head??
This doesnt make sense because the latest big block 632 makes the same as this small block and they always have reliability issues with those
Not to mention it is not being reved after 7000rpm
Is the cam base circle much larger the usual in order to make high lift without being aggressive because steve doesnt like extremely aggressive cams
@@FirstLast-tx3yj An LS has a 55mm cam so yes, much larger than a BBC. Also, the valve train geometry of an LS is better off the bat than that of a BBC.
The BBC is a much older design and thus it just have some different issues.
That said, you have to factor in that some of the power here comes from high compression and oxygenated fuel. Also, a 632 is and will always be a bit of an oddball size with some inherent design flaws. There's a reason why many of us choose a 572, 582, or even 598. The 632 has so much windage that oiling can easily become a challenge. If you build a 565 or 582, you can make the same power as reliably as this if you follow the same route. That means 55mm cam, shaft rockers, proper cam design, good lifters, sorted oiling etc. A BBC can outperform an LS both in terms of power and reliability, but you have to build it properly to get rid of some of those inherent flaws and issues of the BBC.
Thanks Steve for the information, much appreciated .
Nice touch with the owner approval at the end there. Great video.
It makes 750hp at 5000rpm ! I think that's a bigger achievement than the top end .
that's completely bananas
How about over 900 HP at only 6000 RPM. Crazy power from an LS although the use of a totally different head design makes it kinda loosely still an LS.
This is actually something that I am interested in.
Love your N/A builds
Keep the videos coming Steve love it. What a mean “little “ ls. It would be pretty interesting to throw a carb on it and do a little carb vs efi comparison. Thanks SME
Bout damn time, sick ass LS
The sb2 style covers really make the ls look better imo.
Nice motor!
NA is always nice to see.
Ps love your videos and all the great
Tech!
That thing is gona be a handful. Nice !!!!
760👍's up Steve M thanks again for taking us all along with you
Nice looking and running LS engine
Thats 1 sweet engine right there 👌
Some hell of a good torque too!
WOW!!!!!! Steve this is a nice engine!!!!
The want is very real with this one 🏁💪🏻
It's funny seeing all the "this is average" comments. It's made 1000hp @ 6800rpm. That's the impressive part!. That's around the rpm most cam/spring/head LS spin to make 500-600hp.
That’s really impressive.
Professor is in! Steve the Professor of Power.
Bloody fun in a S10. Great video again.
Think smaller.....miata. with all that intake...sticking through the hood
@@darinr9424 Man that would be fuuuunnnn wouldn't it.
@@simpleman2004 illegal type fun
Stout!! Nice Detail Steve
I’m pretty confident that will carry the mail 💁♂️😳
WOW! 815 lb/ft / 475 CID = 1.71 lb/ft / CID. That is very impressive to say the least.
Sorta impossible
380 cubic inches can get to about 620 ft lb on 12:1 cr. 475 ci is approx 25% more. So thats 775 ft lb. 14:1 is worth approximately 8% more. Thats 825 ft-lb.
@@dennisrobinson8008 so you’re saying it makes more?
@@willr623 I was saying they made an efficient build. You can tell by the torque output. I compared to a smaller displacement but efficient build. If that big motor put out only 600ft-lb i'd say it was inefficient.
@@dennisrobinson8008 Not only that, it runs Q16. There's another 6-7%. Then there's the dry sump system. That's worth quite a lot too.
If this was a "regular" build with say BR7 heads, 11:1, pump gas etc. 1.45-1.48 would easily be the torque to displacement ratio.
Big heads, high compression, oxygenated fuel, dry sump oiling, etc. all makes a lot of torque, especially if you get the combination right.
Great content thanks for sharing
Nice piece.
Very smooth
I LOVE it!
This is a sweet engine
This is the kind of stuff I like to see. I wish there were more n/a only race classes.
Can I speculate that the cam isnt crazy-wild considering the rpm peaks? Wonder what It would make with lower compression or if you could retard the timing a lot and run on pump gas for driving on drag week. Theres also the e85 option...
Damn, that thing sounds MEAN!
I wonder what the power difference would be if you put one of your billet front feed intake manifolds on there for guys who would like to keep their factory style hood.
All Good! Great build on a long block! Your slide rule is second to none!
That is sweet, 1000 nahp in an S10 phew fun fun hold on! canted valve LS heads nice didn't know they existed... Love to seem em on a turbo or na big bore short stroke engine phew it be a twister I'd think.
What deck height is that block?
I need one of those in my Tahoe! :-)
Come on Steve, you’ve got to have a old vacuum pump laying around! Big stroke like that, even with dry sump, I’ll bet there’s another 25 hp to be had! We did one along time ago with a good crank @ 4.250 stroke, that bastard even balanced properly broke in less than 50 runs! When we repaired we put a Fluiddamper on it, now it lasts awhile, maybe 250 runs before cracks start! Nice job I love all the naysayers who say you cannot get 1000 na out of a SBLS! Tony Bischoff got almost 1100 out of the engine he did for CID! Well if you believe his old dyno!
A properly spec'd dry sump pump can pull 20"+ on an engine like this. Vac pump may not be needed, not saying this one had 20" of vac but it can be done.
Is this a tall deck RHS Alu Block ? Can you share what the finished deck height is ?
When was the last time that an engine did not produce what you thought it would/should?
Steve how much do you think you could squeeze out of a combo like this ?
That's nice motor but how fast do you want to go and how much money do you have
Steve what's the best way to do a timing
Curve for a msd grid system drag race
Na sbc race motor with out a Dyno
Have 30 degrees at idle with 36 degrees
From 4000 rpm to 9300 shift point.
Big cam 292/328 .800 lift solid roller
Cam 114 center line.
Just switched to computer. Timing control.
Thanks
Glen
Very cool 😎
How do these heads compare to the MBE/Dart 10º LS7 heads?
How much tq from idle?
I love tq,especially NA tq. This thing is a MONSTER!
Well done sir! ❤
One bad Lil Big Fella!!
AWSOME
Those heads and intake work well together and the heads work good.
I've seen very good SB2 heads making 900hp on a 450ci so these heads are winners and will make heaps of power on boost.
How much are you going to destroke? 427ci? Should be making 800-850hp there only need 20psi to hit 2000hp then.
I should hope so...
We had 2 different SB2 355 TA race engines that made close to 870.... with an 8600 rpm limit! And that was on a VERY reputable dyno....
You rock 🤟
Damn I love how that engine looks
Who built the headers for this?
Bad ass motor. Have you ever checked out Ron Hutters 440 ls video. 1000 at 10000.
That was impressive, when I first saw it I thought was your version of SMSB2.2....How much HP is oxegenated fuel worth, my (customers) engines are not allowed to use it and the ones that can cant afford it (mud truck and airboat) motors. again I appreciate your work.
Badass.
whats the weather correction factor on this? sounded like a stupid easy NA 1000hp pull
Normal STP correction.
Anybody know if the injector location makes a difference to power??
I've got a similar design inlet manifold, with the two sets of injector bosses and was going to use the lower ones, hence the question.
Higher up vaporizes the fuel better. More power, better gas milage
You should always choose the placement that shoots the fuel as direct at the back of the valve as possible.
WOWSERS.
Steve Morris engines are best of the best.
That is juicy and right up my avenue
Not sure if you know it or not Steve, God has blessed you my friend! That thing is a beast! That officially for me solidifies you as "The best N/A or Boosted!" That a boy!
gat damn
reminds me of a sprint car engine
Love to see what this engine would do on E85 then methanol
Would definitely make less on E85. Meth? Who knows.
How would you think it would do with a heavy nitrous application given this bore x stroke combo?
Crazy
Hey didn't you say Q16 was only
For boosted intercooled engines?
Not completely, it work well in anything, made for boost
😍😍😍 Fuckin love it!🇺🇸🤘
WHAT THE LARGEST CUBIC IN LS YOU RUN WITH BOOST ????
Those valve covers are works of art.
I would like to know about the pistons. Looking forward to that future video.
Me too
Check steve tech it's Steve's other channel
@@samb198055 I searched “Steve tech” and got episodes on this channel. Do you know the channel name?
@@danielfmyers same
Sorry its stevetech with engine builders it's 24 video series
What head is used on NASCAR Engines, I noticed that these head's don't resemble the normal LS based head
R07 on the Chevy, yea Steve says it at the start, pretty sure these are Edelbrock LSR Pro Port ...Luxury Sport Race Professional?
These are based on the SB2 design which was the head that preceded the R07.
Bringing the spice, i bet it has a lot of compression. Do you have an opinion on the lunati voodoo solid roller cams?
14:1
With all due respect, I must say that the dyno seems a bit optimistic - over 140 nm/liter on a naturally aspirated engine, even one running on C16, while not having to drive the accessories, seems quite high! Even 700 lb ft (equating to almost 120 nm/l) would be impressive, but this seems a bit to good to be true, I must say.
Good point. What made me a little suss of those figures are other small blocks I've seen making similar horsepower with similar cubic inches. They generally have a cylinder head with a 3.2" - 3.8" minimal cross sectional area with camshafts with anywhere from .900 to over an inch of lift. With that cylinder head combo and camshaft they usually make peak HP in the 8200-8500rpm range. For them to do it by 7000rpm, they must be years ahead of everyone out there
What type of fuel are you running?
Watch it again. He tells you.
Uffdah!
Is that a 4150 tb? A 4500 would be worth some more power I'd bet
Why wouldn’t it last leaving it at 475 cubic inches on boost ?? I’m really interested why if u don’t mine answering Steve ....
the cylinder walls are paper thin.
That much stroke dictates a longer rod, which pushes the pin high up on the piston. The top of the piston ends up pretty thin so the crown and ring package take a beating from the added heat.
@@DieselRamcharger That is not really the main issue here.
The lack of main and rod journal overlap in the crank and the short weak pistons is the main issue. 4.155 is a non-issue on this block as those walls are far from paper thin. If this is an RHS block, it can be bored to 4.200 with its spun iron sleeves.
@@mchristr Not only that, the ring land itself is weak and could break.
@@AB-80X you just said that cylinder walls .022" thicker than max bore are a "non issue". hmm. Stroker motors just plain suck. The geometry is bad. All of it....but never mind that.
In the last 3 or 4 videos, the motors are screaming but the starters sound like shit, what's going on?
Do some research on dynos.
Over a thousand hp out of a 475 inch motor n/a without spinning the crap out if it. Not that's impressive.
pretty standard these days.
@@DieselRamcharger That's not remotely "standard". Normally aspirated 475" making 1000 at less than 7k is ridiculously impressive.
Most of the time it takes 7500+ rpm to make that much from that size motor.
@@SealofPerfection hp ratings are bullshit. torque is what exists and what is measured. hp is just extrapolated. more to the point. this is a motor that in a chassis will lay down about 750 at the wheels. Its really not that impressive. the motor is right there, right in front of you to see. There is nothing special about it. No magic technologies. No power adders. Just a warmed up LS with bolt on aftermarket parts making typical numbers for the parts selected and installed. the only magic here is Steve knows what parts to pick to get the power he wants. Our SMALLEST motor is 675 at the wheels....this really is not that extreme of a motor. It is, in fact. Pretty Standard. We build a little over 100 cars a year. Thats alot of LS's. Rarely are they under 1000hp. Rarely.
@@SealofPerfection you gotta keep in mind dynos are for comparing engine to engine on the same test bed. not for comparing results of one test bed against another {bench racing} 2hp per cube is really nothing special these days. plus no one is talking about the specifics of the test. ie correction factor. hp claims are in fact. completely meaningless.
For comparison, a Bugatti Veyron uses an 8Lt W16 with 4 turbos to make roughly the same power. (Granted this has way better fuel than pump) But, Did Bugatti miss something?
Ps: What a beast.
He's dropping that in a s10?
Just wondering, how do u measure the load on a engine to get a accurate hp on the engine.
He's got a video about that
@@josephschaefer9163 oh.
Torque arm on a strain guage.. Works against a water absorber.
czcams.com/video/g5ZkrcDyPYg/video.html
Torque x RPM / 5252 = bhp. That's how you calculate hp from RPM and torque, and that's what a dyno does.
How bout some cam specs, piston specs please. Not exact but, close :)
I'm sure that if you buy a cam or some pistons, he'd share his business secrets for your specific cam and pistons. Don't expect an engine builder to share his proprietary info.
That's a pretty stout NA LS. The cylinder heads contribute as much to that number as the cam does, I'd think...
As with any build, the heads make the engine. Anything else is just filler. Those heads are basically SB2 style heads, only bigger.
Good morning everyone hope everyone is having a blessed day
good morning, you too sir
Damn 137Nm/L is crazy, the bmw s14 dtm had 121Nm/L at 12:1 compression on 95 octane fuel...
Not built to last or street.
I'll take the boost one I drive on the street 116 gas that basically just a race engine unless your pocket really heavy
Seems like you run all of your engines on c16 just curious why not ethanol or even x85l a ethanol that’s leaded? Just curious
Likely in part due to the additives IN C-16. Bearings in engines like things like that... lol
Q16 is a leaded fuel.
Sweet B B,,
Let me explain what “something about na” means, it’s a highly predictable power response delivered with smoothness and control, even when 1000hp + are through the wheels
What heads?
He tells you.
You need to open the door a little so we can hear those motors! Your dyno room really contains the noise, which is good for you, but sucks for us viewers...IMO
NICE MOTOR!