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

Deck Height: +.006 or -.006?

Thread Tools
 
Search this Thread
 
Old Jan 5, 2007 | 01:05 PM
  #1  
SLO C5's Avatar
Thread Starter
Teching In
 
Joined: Dec 2006
Posts: 17
Likes: 0
Default Deck Height: +.006 or -.006?

I've been playing around with some of the SCR/DCR calculators out there. I've seen both a negative and positive deck height used. What is the factory LS1 deck height?

I can't believe how much I've learned in the short month I've been a member here.

This place rocks!
Reply
Old Jan 5, 2007 | 01:18 PM
  #2  
Stang's Bane's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
Default

Depends on how you look at it. The pistons are out of the hole.
Reply
Old Jan 5, 2007 | 01:31 PM
  #3  
Bink's Avatar
TECH Addict
20 Year Member
 
Joined: Jul 2002
Posts: 2,261
Likes: 0
Default

Originally Posted by Stang's Bane
Depends on how you look at it. The pistons are out of the hole.
Yep, and most of the calculators like J-Rod's use " -.006 " in the DCR calc.
Reply
Old Jan 5, 2007 | 02:52 PM
  #4  
SLO C5's Avatar
Thread Starter
Teching In
 
Joined: Dec 2006
Posts: 17
Likes: 0
Default

So which is the correct value then?

Use -.006?
Reply
Old Jan 5, 2007 | 04:25 PM
  #5  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

-.006 is above deck and it is the correct value to use.
Reply
Old Jan 5, 2007 | 05:27 PM
  #6  
JPH's Avatar
JPH
TECH Junkie
15 Year Member
iTrader: (2)
 
Joined: Jan 2006
Posts: 3,776
Likes: 0
From: Fort Wayne, IN
Default

-.006
Reply
Old Jan 8, 2007 | 11:22 AM
  #7  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

some calculators are backward for whatever reason, what i do is plug both in and the one that yields higher compression is out of the hole.
Reply
Old Jan 8, 2007 | 12:35 PM
  #8  
N4cer's Avatar
10 Second Club
iTrader: (11)
 
Joined: Apr 2006
Posts: 2,526
Likes: 1
From: Ashland, KY
Default

-.008 has been the commonly accepted value until this latest calculator came out. I have no idea why it suddenly got changed.
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 Jan 8, 2007 | 12:49 PM
  #9  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Originally Posted by N4cer
-.008 has been the commonly accepted value until this latest calculator came out. I have no idea why it suddenly got changed.
LOL, i always used .007. The numbers seem to change every year. Ive heard stories of pistons being as much as .010 out. Not to mention that people need to remember that it could be even greater if the piston is still cold and rocking in its bore. Dont go too close with your quench!!!
Reply
Old Jan 8, 2007 | 02:55 PM
  #10  
pianoprodigy's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Apr 2005
Posts: 315
Likes: 0
From: Tampa Bay Area, FL
Default

If you're talking about my calculator (and every other calculator I've seen for that matter), it should be a negative number. You can use -.008 if you want to be ultra paranoid, and honestly, that's not really a bad thing. But the average is closer to -.006 from what I've read and been told.
Reply
Old Jan 8, 2007 | 08:23 PM
  #11  
LIL SS's Avatar
Moderator
iTrader: (9)
 
Joined: Nov 2001
Posts: 2,966
Likes: 2
From: San Jose area
Default

So assuming stock deck height (block not decked) would stock crank, eagle 6.125 rod and Diamond 3.905 off the shelf piston yeaild -.006?

How about other non-stock connecting rods/pistons?
Reply




All times are GMT -5. The time now is 11:33 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