9.249 - 9.230 = 0.019 
Compression height of stock LS3 pistons
Compression height of stock LS3 pistons Is anyone able to confirm the compression height of stock LS3 pistons?
Oddly when I look at the specs of replacement pistons from Weisco and Diamond, the compression heights differ.
Oddly when I look at the specs of replacement pistons from Weisco and Diamond, the compression heights differ.
Staging Lane
Joined: Dec 2009
Posts: 58
Likes: 0
From: Miami Fla.
If it's for the same length rod the compression height can't differ too much. Many aftermarket forged pistons are for an aftermarket rod which is a bit longer. I believe diamond makes a forged piston for a stock length rod, haven't heard of wiseco making one.
The only source I found is that they are 1.340-in
(3.622/2) + 6.098 + 1.340 = 9.249
The block deck is 9.240, so do they really stick 0.009 above the deck?
(3.622/2) + 6.098 + 1.340 = 9.249
The block deck is 9.240, so do they really stick 0.009 above the deck?
Last edited by Hans Grüber; Mar 24, 2011 at 05:01 PM.
TECH Regular
Joined: Nov 2010
Posts: 443
Likes: 0
From: Your GF's pants
Trending Topics
Block deck height on the aluminum engines is typically 9.240" or so (it does vary one to the next by a small amount). That would make a 1.340" CD piston on a stock crank and rod out of the hole .009". That is pretty close, since most of these stock combos have the piston out between .005" and .010". Not uncommon at all!
__________________
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Block deck height on the aluminum engines is typically 9.240" or so (it does vary one to the next by a small amount). That would make a 1.340" CD piston on a stock crank and rod out of the hole .009". That is pretty close, since most of these stock combos have the piston out between .005" and .010". Not uncommon at all!
