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

engine pros

Thread Tools
 
Search this Thread
 
Old Sep 25, 2008 | 10:14 AM
  #1  
gonzo 6.2's Avatar
Thread Starter
TECH Junkie
iTrader: (8)
 
Joined: Oct 2002
Posts: 3,824
Likes: 0
From: oregon
Default engine pros

my buddy picked up a 99 LS1 with 150K hard miles ,it runs like a champ ,what can we expect when the bore is checked?Is it likely we can do oversize pistons ?what .005 over is max? is it likely worn past that?looking at all options,doing budget build.Would honing and re-ring be a reasonable possibility?I just dont know how these alloy blocks typically wear.Thanks

Last edited by gonzo 6.0; Sep 25, 2008 at 10:32 AM.
Reply
Old Sep 25, 2008 | 07:02 PM
  #2  
conan's Avatar
TECH Senior Member
20 Year Member
iTrader: (5)
 
Joined: May 2004
Posts: 6,492
Likes: 6
From: Back in the Burg
Default

If the engine is still running fine chance's are you wouldn't have to hone much to clean up the cylinder's. The stock 346 bore is 3.898" you can hone to a 347 3.908" bore. But you'll have to buy new pistons. My $.02 save your money, dont blow the engine, and when you have enough buy some forged rod's hone it to a 347 and throw in some new forged pistions, reuse the stock crank with all new bearings (cam,crank,main) and then give her hell. Then you'll have a nice new forged SB to do what you want.
Reply
Old Sep 26, 2008 | 08:42 AM
  #3  
gonzo 6.2's Avatar
Thread Starter
TECH Junkie
iTrader: (8)
 
Joined: Oct 2002
Posts: 3,824
Likes: 0
From: oregon
Default

I should have mentioned is that this is a pull out engine that he heard run.The seller said the engine smokes on hard hard de-cell,now I think all we will do is valve seals and run it.Based on what you are saying is these cylinders dont get out of round all that much with tons of miles.
Reply
Old Sep 26, 2008 | 09:03 AM
  #4  
ssmith512's Avatar
On The Tree
 
Joined: Mar 2008
Posts: 126
Likes: 0
From: Indianapolis
Default

Isnt smoking on hard decel more of a ring issue than valve stem seals??
Reply




All times are GMT -5. The time now is 11:28 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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