Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

I found this interesting PP LS6 heads

Thread Tools
 
Search this Thread
 
Old Nov 20, 2004 | 10:02 AM
  #1  
CHRISPY's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 10,341
Likes: 1
Default I found this interesting PP LS6 heads

Speed Inc shop car:

C5R block, 232/232 116LSA cam, 427 cubic inches, TH400 (unlocked) big turbo and LS6 Patriot Performance heads.

900RWHP with an unlocked converter and heavy drivetrain at only 17#'s boost, rolling into the gas as the slicks would ignite on the dyno...

They think 1000RWHP is just around the corner.

Check out this thread...

https://ls1tech.com/forums/forced-induction/240695-speed-inc-shop-car-427ci-gt88-preliminary-dyno-results.html

Very Impressive. I'd be interested to see what valve sizes and prot volumes they used.



Chris

Last edited by Chris ARE 385; Nov 20, 2004 at 10:11 AM.
Reply
Old Nov 20, 2004 | 11:03 AM
  #2  
cyphur's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 8,009
Likes: 0
From: North Texas
Default

Damn, thats some serious power. Very impressive. Props to Patriot if they're the only ones who worked on those heads.
Reply
Old Nov 20, 2004 | 01:17 PM
  #3  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

Originally Posted by cyphur_traq
Damn, thats some serious power. Very impressive. Props to Patriot if they're the only ones who worked on those heads.
LS1 speed is pretty good at working on Patriot heads. I'm sure they have done a pretty good bit of work on them. I don't think they would put out of the box heads on a motor like that......
Reply
Old Nov 20, 2004 | 01:19 PM
  #4  
cyphur's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 8,009
Likes: 0
From: North Texas
Default

Originally Posted by Beast96Z
LS1 speed is pretty good at working on Patriot heads. I'm sure they have done a pretty good bit of work on them. I don't think they would put out of the box heads on a motor like that......
Thats what I was thinkin. At which case a consumer might as well buy from TEA/MTI or elsewhere by the time the handfinished costs add up.....
Reply
Old Nov 20, 2004 | 03:43 PM
  #5  
Krazy98Z28's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Jun 2002
Posts: 3,151
Likes: 0
From: Fall River, MA
Default

PureEvL runs PP LS6 heads and put down 635RWHP with 10lbs of boost and now with the STS hes makin 600+. hes stock cubes
Reply
Old Nov 20, 2004 | 03:51 PM
  #6  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

I'm not going to say any of there heads are bad, but forced induction can help a bad head look good.
Reply
Old Nov 20, 2004 | 04:10 PM
  #7  
goober35's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: May 2003
Posts: 1,387
Likes: 0
From: St Clairsville, Oh
Default

Originally Posted by Beast96Z
I'm not going to say any of there heads are bad, but forced induction can help a bad head look good.
That what i was going to say. I mean look 19# of boost and then on a 427 on race gas with some mad timing and you got it. There are a lot of little thinks that they are not saying. LIke if they use an air/air or an air/water. If they sprayed it to cool the air. I have not read the thread but that is just a guess.

Edit: 112 leaded fuel and no a/c or power stearing. HMMM guess i was right on that race gas.

Last edited by goober35; Nov 20, 2004 at 04:16 PM.
Reply
Old Nov 20, 2004 | 05:50 PM
  #8  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

Didn't the turbo 408 with TEA heads make 1560 rwhp?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 20, 2004 | 06:33 PM
  #9  
cyphur's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Mar 2003
Posts: 8,009
Likes: 0
From: North Texas
Default

Originally Posted by Beast96Z
Didn't the turbo 408 with TEA heads make 1560 rwhp?
Somethin crazy like that.
Reply
Old Nov 20, 2004 | 07:55 PM
  #10  
CHRISPY's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 10,341
Likes: 1
Default

Originally Posted by Beast96Z
Didn't the turbo 408 with TEA heads make 1560 rwhp?
On an engine dyno with a boost spike to over 30#'s.

That is a very impressive combo as well.

The point I was trying to make is 900RWHP through an unlocked TH400 at a relatively low 17#s boost and very mild cam is VERY impressive.

I thought it was interesting that they used PP heads and they supported that power level.

Reply
Old Nov 20, 2004 | 08:13 PM
  #11  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

Actually, that is one of the bigger turbo cams I've seen. Most are in the 22X'ish duration wise. Still an impressive car none the least.
Reply
Old Nov 21, 2004 | 08:32 AM
  #12  
CHRISPY's Avatar
Thread Starter
TECH Senior Member
 
Joined: Nov 2001
Posts: 10,341
Likes: 1
Default

Originally Posted by Beast96Z
Actually, that is one of the bigger turbo cams I've seen. Most are in the 22X'ish duration wise. Still an impressive car none the least.
Most turbo cars on the board here are 348ci not 427. That is a very SMALL turbo cam for a motor of that displacement.

Ask Harlan what cam he is running in his 348ci TT setup.
Reply
Old Nov 21, 2004 | 07:13 PM
  #13  
Jon @ Speed Inc's Avatar
Banned
iTrader: (2)
 
Joined: Apr 2002
Posts: 1,438
Likes: 0
From: Schaumburg IL
Default

That was the third run on the car and rolling into it and hitting slight electrical problems. Not trying to make excuses but its getting pretty crazy that almost 930 RWHP doesnt seem to be that much.

Anyways, Patriot was the only person to port these heads, however they were told what they were going on and we fulley trusted them. The shortblock in this car is not exactly cheap

Just wait till we crank up the boost and put some slicks on it so it doesnt just sit and spin the tires on the dyno rollers.
Reply
Old Nov 22, 2004 | 10:31 AM
  #14  
Gunnar@Patriot's Avatar
FormerVendor
iTrader: (20)
 
Joined: Jul 2004
Posts: 1,416
Likes: 0
Default

Originally Posted by Speed Inc Webmaster
That was the third run on the car and rolling into it and hitting slight electrical problems. Not trying to make excuses but its getting pretty crazy that almost 930 RWHP doesnt seem to be that much.

Anyways, Patriot was the only person to port these heads, however they were told what they were going on and we fulley trusted them. The shortblock in this car is not exactly cheap

Just wait till we crank up the boost and put some slicks on it so it doesnt just sit and spin the tires on the dyno rollers.

Great job guys !! Glad we could be a part of this great project. Jon, tell Tom to get that C6 in there and get to work !!
Reply
Old Nov 22, 2004 | 10:11 PM
  #15  
Ben R's Avatar
TECH Junkie
 
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Default

The beauty of a turbo is that you can have bad heads, a bad cam, a bad intake manifold, a well designed turbo system, and still make killer power. Instead of racing engines we start racing turbo systems. I'm not exactly opposed to that, because I think that Outlaw 10.5" racing is the most exciting racing that's going on today. There are definaly some closer classes (Comp Elim., Pro Stock, and Pro Stock Bike to name some of them) but it's just amazing what these 'street' type cars are doing, and on a little slick!
Reply
Old Nov 22, 2004 | 11:33 PM
  #16  
CaptUSA's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Apr 2004
Posts: 1,229
Likes: 0
From: San Diego
Default

Originally Posted by Chris ARE 385
rolling into the gas as the slicks would ignite on the dyno...
Now that's how you know when you're on the right track!!

Sounds killer guys!

Reply




All times are GMT -5. The time now is 12:15 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE