Cool Thread on L-76 Intake Production
Burning Brakes
Joined: Mar 2006
Posts: 906
Likes: 1
From: SF Bay CA
As a follow up, I found the following part numbers at the GMPerfromance Parts website. http://www.gmperformanceparts.com/Pa...l.jsp?engine=2
L92 Heads = 12582713
L76 Manifold = 12590123
The website is pretty cool. You can build a crate engine and then check the published Torque and Horsepower for that configuration. According to the website. By just adding the heads and manifold to a stock LS2 the dyno chart shows a peak horsepower rating of 440 at 5800 RPM. Sounds good to me!
L92 Heads = 12582713
L76 Manifold = 12590123
The website is pretty cool. You can build a crate engine and then check the published Torque and Horsepower for that configuration. According to the website. By just adding the heads and manifold to a stock LS2 the dyno chart shows a peak horsepower rating of 440 at 5800 RPM. Sounds good to me!
Thread Starter
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 265
From: St. Louis, MO
St. Jude Donor '08
Drifting
Joined: Feb 2006
Posts: 1,531
Likes: 0
From: Deerfield Beach FL
Roger @ H-P Sales has told me about seeing these heads w/ CNC port job, etc. done by Livernois. They were at the show in Orlando. Tried to contact them (Rog also tried), but they seem to be closed this week. Maybe Tuesday, after New Years will get some answers.
Burning Brakes
Joined: Mar 2006
Posts: 906
Likes: 1
From: SF Bay CA
Talked about these yesterday with Rick at Synergy whos already tuned a set on a 408 block with good results, but he felt the amount of valve shrouding you would have would really kill their potential on the stock bore LS2. Would liek to see some results but think I'll hold off on these till I bore it out 
1st Gear
Joined: Oct 2006
Posts: 1
Likes: 0
Talked about these yesterday with Rick at Synergy whos already tuned a set on a 408 block with good results, but he felt the amount of valve shrouding you would have would really kill their potential on the stock bore LS2. Would liek to see some results but think I'll hold off on these till I bore it out
Matt.
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