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

Stock compression for an LS1?

Old Jan 24, 2019 | 09:18 PM
  #1  
curtisad's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (4)
 
Joined: Oct 2005
Posts: 495
Likes: 0
From: Jefferson Ga
Default Stock compression for an LS1?

Do any of you guys know what the stock compression is on a 98 Camaro Z28 LS1? I had the stock heads ported and decked a little bit, but I was wondering what it was stock?
Reply
Old Jan 24, 2019 | 09:50 PM
  #2  
JakeFusion's Avatar
Super Hulk Smash
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Default

GM claims 10.1:1.

But even with a .060" gasket, it's 10.3:1...
Reply
Old Jan 24, 2019 | 10:09 PM
  #3  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,289
Likes: 3,615
From: Central Cal.
Default

Originally Posted by JakeFusion
GM claims 10.1:1.

But even with a .060" gasket, it's 10.3:1...
Just making sure you got your money's worth....
Reply
Old Jan 26, 2019 | 11:40 PM
  #4  
A.R. Shale Targa's Avatar
11 Second Club
iTrader: (2)
 
Joined: Feb 2011
Posts: 3,729
Likes: 15
From: Fredonia,WI
Default

10.19:1 at operating temperature
10.3 would be at room temperature on an engine stand
deck grows eight. Comp drops
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:37 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE