people have going through big efforts importing them from Australia and low and behold they're made proudly right here in the U.S. 
lol
Cool Thread on L-76 Intake Production
Thread Starter
Tech Contributor
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From: St. Louis, MO
St. Jude Donor '08
Cool Thread on L-76 Intake Production
Interesting thread about how the intakes are made by a guy who does it for a living - here in the good old USA, Kentucky no less!
http://ls1tech.com/forums/showthread.php?t=627174
http://ls1tech.com/forums/showthread.php?t=627174
Team Owner
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From: Short Hills, NJ
Thread Starter
Tech Contributor
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From: St. Louis, MO
St. Jude Donor '08
Yes you need the L92 heads too. I'm scoping a set of these heads over on the other board ported by Texas Speed, flowing 351 @ .600 for about $1,750 including dual springs & rockers, plus about $500 for the intake including new throttle body and injectors. Interested to see how these perform in the real world. Those are some big numbers for a low price.
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Thread Starter
Tech Contributor
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From: St. Louis, MO
St. Jude Donor '08
I either read on LS1Tech or someone here told me that Barry at Airflo Research here in town is very good. Might want to do a search over there.
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St. Jude Donor '08
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From: Houston TX
Stock LS2 throttle body will bolt right on. Like others said, you need to have the L92 heads (they bolt right onto an LS2) for the L76 intake to work. These heads basically flow like LS7 heads, but are very cheap, less than $800/pair assembled.
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St. Jude Donor '08
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From: SF Bay CA
Drifting
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From: Deerfield Beach FL
The manifold can be ordered "bare". Stock T-B will work fine. Complete manifold comes with new T-B, fuel rails, and 40# injectors (larger than stock). Heads will need stronger (dual) springs and milling to restore compression ratio as combustion chamber is larger (70cc vs. 65cc)
Joe G- have spoken w/Barry and will take him my heads and discuss what to do to get the most from them. Then probably to H-P Sales for install and cam.
Price of heads/complete manifold @ Fred Beans=$1360.
Heads also need "offset" intake rockers as they don't come with the heads. Stock exhaust rockers can be switched from "old" heads.
Joe G- have spoken w/Barry and will take him my heads and discuss what to do to get the most from them. Then probably to H-P Sales for install and cam.
Price of heads/complete manifold @ Fred Beans=$1360.
Heads also need "offset" intake rockers as they don't come with the heads. Stock exhaust rockers can be switched from "old" heads.
Last edited by mikesul; Dec 24, 2006 at 07:53 PM.
Instructor
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From: Portland Oregon
St. Jude Donor '10
What are the part numbers for the L92 and L76?
Will these bolt straight onto a stock LS2? Is there anything I should be concerned about, if I was to have these installed on my car?
Is there a significant power increase over stock? I thought I read someone referencing an article with test results. I'm all for power increases from simple bolt on parts.
Is there a significant power increase over stock? I thought I read someone referencing an article with test results. I'm all for power increases from simple bolt on parts.
Instructor
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From: Metairie LA
how can you tell if you have the later heads are they on production cars after a certain VIN or strictly replacement pieces?
Burning Brakes
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From: SF Bay CA
Team Owner
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From: Short Hills, NJ
No, what I meant was that the intake only fits on 6.2L heads, when I said the term 'later' I was simply referring to these newer heads and the new motors in the Escalade/Yukon Denali etc not that there was any change in the current C6 LS2 heads, those are all the same from 2005-2007.
Instructor
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From: Portland Oregon
St. Jude Donor '10
Will these bolt straight onto a stock LS2? Is there anything I should be concerned about, if I was to have these installed on my car?
Is there a significant power increase over stock? I thought I read someone referencing an article with test results. I'm all for power increases from simple bolt on parts.
Is there a significant power increase over stock? I thought I read someone referencing an article with test results. I'm all for power increases from simple bolt on parts.
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!