Boring
Le Mans Master
Joined: Feb 2006
Posts: 5,073
Likes: 414
From: Maine
Why sleeve ?
My original l-79 is at .060 and I just put on 34,000 miles in the last 2 years. It has over 300,000 miles on it with original , crank, rods, heads and only burns 1 qt of oil every1,500 miles.
Why do you have to sleeve it ? Unless you have damaged walls...
Jack
Thread Starter
Pro
Joined: Apr 2012
Posts: 534
Likes: 21
From: PA
Boring
The block is in the machine shop as we speak i hope to find out today how much they will bore out. I just threw out that question to see what if, needs to be done . I don't think i would have go the decking route. I want to keep this original, at any cost. Just looking for options from the guys that know. Thank you
Race Director
Joined: Mar 2009
Posts: 19,777
Likes: 4,592
From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
First, you don't give what motor you're talking about, they are all different. Some have thicker walls, and some years are more uniform in their thickness of the walls. The old 283's could be safely taken out to +120 over size! But, as Jack say, you have to do a sonic check for uniformity. Even 2 blocks from the same year can have varying cylinder walls. All major rebuilds should include checking the surface to see if it needs to be decked or not. 
Race Director
Joined: Mar 2009
Posts: 19,777
Likes: 4,592
From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote