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

quick head question

Thread Tools
 
Search this Thread
 
Old Jan 4, 2008 | 12:49 AM
  #1  
01FbTaWs6's Avatar
Thread Starter
11 Second Club
iTrader: (12)
 
Joined: May 2005
Posts: 1,142
Likes: 0
From: Cedar Rapids, IA
Default quick head question

OK guys, i have a line on some TSP stage 1.5 LS6 heads. They are insanelly cheap because the guy needs the money for AFR's. Anyhow, my question is this. I just got a cam spec'd from patrick g, and he spec'd the cam to stock LS6 castings, which would be 64 CC. These have been milled to 58cc, so it looks as if I would need a .070 head gasket to get the compression ratio, and DCR that he spec'd the cam for. Do they make a gasket for the LS1 that is around that thickness? And would it negativelly affect anything? The specs on teh cam are 226/230 .612/.588 on a 111+1. Would it be worth the extra money to buy these over stock LS6 castings, or will having to space them up just ruin it?
Reply
Old Jan 4, 2008 | 12:54 AM
  #2  
Sharpe's Avatar
TECH Veteran
iTrader: (7)
 
Joined: Aug 2004
Posts: 4,996
Likes: 1
From: Southeastern IL
Default

Ask Pat.
Reply
Old Jan 4, 2008 | 12:59 AM
  #3  
01FbTaWs6's Avatar
Thread Starter
11 Second Club
iTrader: (12)
 
Joined: May 2005
Posts: 1,142
Likes: 0
From: Cedar Rapids, IA
Default

I sent him a PM, but wanted to see what some others said also. Thanks though.
Reply
Old Jan 4, 2008 | 03:43 PM
  #4  
JPH's Avatar
JPH
TECH Junkie
15 Year Member
iTrader: (2)
 
Joined: Jan 2006
Posts: 3,776
Likes: 0
From: Fort Wayne, IN
Default

I did a COMETIC gasket one time for a guy that was 3.910/.072. It was a custom deal which didn't cost anymore. Average price of $77.00 a head gasket I believe. I tryed looking for the old part # I had, but can't find it.
Reply
Old Jan 4, 2008 | 11:10 PM
  #5  
01FbTaWs6's Avatar
Thread Starter
11 Second Club
iTrader: (12)
 
Joined: May 2005
Posts: 1,142
Likes: 0
From: Cedar Rapids, IA
Default

its cool man. I got ahodl of Patrick, and he said it would be fine on even a .040 gasket without PTV issues. That would put me well into the 11.9:1 ratio, so im going with stock head gaskets, which are a compressed thickness of arond .053 I think, and that gives me an SCR of 11.5:1 and a DCR of 8.9:1. Should put me into some decent numbers.
Reply
Old Jan 4, 2008 | 11:17 PM
  #6  
spookyz28's Avatar
Teching In
 
Joined: May 2007
Posts: 41
Likes: 0
From: Long beach Ca
Default

Originally Posted by 01FbTaWs6
OK guys, i have a line on some TSP stage 1.5 LS6 heads. They are insanelly cheap because the guy needs the money for AFR's. Anyhow, my question is this. I just got a cam spec'd from patrick g, and he spec'd the cam to stock LS6 castings, which would be 64 CC. These have been milled to 58cc, so it looks as if I would need a .070 head gasket to get the compression ratio, and DCR that he spec'd the cam for. Do they make a gasket for the LS1 that is around that thickness? And would it negativelly affect anything? The specs on teh cam are 226/230 .612/.588 on a 111+1. Would it be worth the extra money to buy these over stock LS6 castings, or will having to space them up just ruin it?
Stock casting combustion chamber is 67cc. Try the tri metal gasket, they work great
Reply
Old Jan 5, 2008 | 12:20 AM
  #7  
01FbTaWs6's Avatar
Thread Starter
11 Second Club
iTrader: (12)
 
Joined: May 2005
Posts: 1,142
Likes: 0
From: Cedar Rapids, IA
Default

No, stock LS1 (241) castings are 66.67cc, i had it spec'd for LS6 (243) castings which are 64.45cc. these have been milled to 58cc. but regardless, I think i have it figured out. Thanks
Reply




All times are GMT -5. The time now is 08:08 PM.

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