Confirmed that I hurt my LS7 Block
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Joined: Sep 2014
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From: Mississippi
You have a link to that 416ci? Last 416ci I seen was called "super size me" by LME. Motor made 629 horses and the heads did have a CNC program on them by LME.
10 Second Club
Joined: May 2009
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From: over dere
Wow. Never thought hiho & hams would agree. Go tell the guy running cathedral heads running 4.4x 1/8 times how he can be faster w/ LS3 stufff. I'll tell hams I could probably find 70hp from a cam & intake manifold change. Even though I'd have to change those things if changing to LS3 heads anyway. Also MAST LS3 heads are not just LS3 heads. But I know you want erryone to think that & be confused. Just like you don't have an LS7 block either. Lol.
Hey you cut a 1.2x 60' right? He's only had 1.11 so your getting close with your LS3. Oh wait that was your stock ls6...???? Whatever.
Seriously. It's just these fools that want to say one thing is better for everybody. So childish & close minded.
FOR THOSE GUYS: LS3 HEADS ARE THE BESTEST IN THE WORLDS EVERS. I WOULD PUT DEM ON MY TRACTOR IF I COULDZ.
Hey you cut a 1.2x 60' right? He's only had 1.11 so your getting close with your LS3. Oh wait that was your stock ls6...???? Whatever.
Seriously. It's just these fools that want to say one thing is better for everybody. So childish & close minded.
FOR THOSE GUYS: LS3 HEADS ARE THE BESTEST IN THE WORLDS EVERS. I WOULD PUT DEM ON MY TRACTOR IF I COULDZ.
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Joined: May 2009
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From: over dere
What's the problem with TFS heads? It's hard to argue with the track times they have put out.
Crossbreed 416ci went low 9s with his TFS 245s. Car made stupid power and he had a hard time keeping the front tires on the ground. Chris1313 proved the heads work as well. James Day camaro went 5.9s in the 1/8 Mile ON MOTOR on pump gas with a hydraulic roller and a fast intake. James used TFS 235s to the job done.
Crossbreed 416ci went low 9s with his TFS 245s. Car made stupid power and he had a hard time keeping the front tires on the ground. Chris1313 proved the heads work as well. James Day camaro went 5.9s in the 1/8 Mile ON MOTOR on pump gas with a hydraulic roller and a fast intake. James used TFS 235s to the job done.
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Joined: May 2009
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From: over dere
I disagree. Richard Holderner don't care what heads, cam, intake, etc makes more power. He don't sell parts at all.... he just get paid to put performance parts to the test on the dyno.
If you follow Richard Holdener builds/tests on facebook you'll see all kind of parts tested. He have tested Mast heads (cathedrals and rectangle), TFS heads (again cathedrals and rectangle), AFR heads, Dart heads, GM heads... just to name a few. He also test all brand blowers and turbos.
https://www.hotrod.com/articles/ccrp...ine-build/amp/
So can you tell me why the 404ci stroker only made 560 horses with GMPP LS3 heads ?
If you follow Richard Holdener builds/tests on facebook you'll see all kind of parts tested. He have tested Mast heads (cathedrals and rectangle), TFS heads (again cathedrals and rectangle), AFR heads, Dart heads, GM heads... just to name a few. He also test all brand blowers and turbos.
https://www.hotrod.com/articles/ccrp...ine-build/amp/
So can you tell me why the 404ci stroker only made 560 horses with GMPP LS3 heads ?
Pretty sure i linked a 700+ hp stroker with gmpp heads
11 Second Club
Joined: Mar 2012
Posts: 1,541
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From: South Florida
Started another thread in this section for BSing. No point in mudding up Bills thread this bad.
To OP. Hey Bill. Haven't seen you in awhile. I haven't been getting to track too much mostly cause of weather. Can't wait till your car is back up. Hope to see you soon buddy.
To OP. Hey Bill. Haven't seen you in awhile. I haven't been getting to track too much mostly cause of weather. Can't wait till your car is back up. Hope to see you soon buddy.
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to create that 21psi on both combos would require pulley changes. With that said the blower could and likely should be well outside it's efficiency rage with the ls7 heads requiring it to work harder. ...which would use power.
Way to many variables to make a boosted comparison fair. Na is the only way to compare them.
Way to many variables to make a boosted comparison fair. Na is the only way to compare them.
TECH Veteran
Joined: Sep 2014
Posts: 4,893
Likes: 706
From: Mississippi
Not my words. Words from one of the most highly respected names in the business. Copy and paste.....
I have seen TFS 235 heads consistently pick up anywhere from 30-40 over stock or ported LS3 heads on 402-408 engines...every time. You L92 lovers have to understand that these heads are not ideal for a 4" bore. The big 2.165" intake valve is slammed right next to the chamber wall and cylinder bore. Might flow well at 28" of H2O but it does not make great power on a real running engine...not compared to a well designed cathedral port head.
I have seen TFS 235 heads consistently pick up anywhere from 30-40 over stock or ported LS3 heads on 402-408 engines...every time. You L92 lovers have to understand that these heads are not ideal for a 4" bore. The big 2.165" intake valve is slammed right next to the chamber wall and cylinder bore. Might flow well at 28" of H2O but it does not make great power on a real running engine...not compared to a well designed cathedral port head.
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Joined: May 2009
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From: over dere
Here’s a 790 hp 6.2 with ported stock L92 heads. Maybe there’s a tfs 235 headed 6.2 out there making more
https://www.yellowbullet.com/forum/s...ight=790hp+ls3
https://www.yellowbullet.com/forum/s...ight=790hp+ls3
TECH Veteran
Joined: Sep 2014
Posts: 4,893
Likes: 706
From: Mississippi
Here’s a 790 hp 6.2 with ported stock L92 heads. Maybe there’s a tfs 235 headed 6.2 out there making more
https://www.yellowbullet.com/forum/s...ight=790hp+ls3
https://www.yellowbullet.com/forum/s...ight=790hp+ls3
That has to be the SLOWEST 800 horse motor I've ever seen naturally aspirated. I just read that thread. Car went 7.15 on motor in 1/8 mile at 2900 lbs turning over 8000 RPM.That kind of power that setup should be in the low 6s in bad air at 2900 lbs. My boy Mike 402ci makes roughly 650 at the crank and runs 6.6 in the 1/8 on worn out slicks at 35XX lbs banging gears like a
I admire your post but that 
is slow bro. Try again. 10 Second Club
Joined: May 2009
Posts: 3,427
Likes: 227
From: over dere
That has to be the SLOWEST 800 horse motor I've ever seen naturally aspirated. I just read that thread. Car went 7.15 on motor in 1/8 mile at 2900 lbs turning over 8000 RPM.That kind of power that setup should be in the low 6s in bad air at 2900 lbs. My boy Mike 402ci makes roughly 650 at the crank and runs 6.6 in the 1/8 on worn out slicks at 35XX lbs banging gears like a
I admire your post but that is slow bro. Try again.