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

Scuffs on head?

Thread Tools
 
Search this Thread
 
Old Jul 20, 2005 | 07:36 PM
  #1  
Jimmy P's Avatar
Thread Starter
TECH Fanatic
iTrader: (177)
 
Joined: Jan 2004
Posts: 1,933
Likes: 1
From: USA
Default Scars on head? Will it cause hot spots?

Were putting the motor back together and saw these little scar marks on one head. They are on the circle part that hangs above the piston, but not were the valves are, they are next to them. I'm suprised it didn't scuff up the ported part were the valves are, but that part looks nice and smooth. The scuff marks aren't that large, I think theres only 6 of them or so, and they are only on one circle. I would say none are larger than .1" How much milling would that be to flatten the heads? I know a picture would be best, but I dont have access to them right now. What should I do? I can have them milled a little bit, but that would give me less piston to valve clearance with my G5x4 cam. My JE pistons do have valve reliefs, but I do not know how to calculate all that to see if the valves will hit the pistons. PLus my block has been decked, so not sure if that gives me even less space. The heads are Absolute Speed 5.7's that have been milled 5 thousenths. How much would the compression raise if they were milled 20 thousenths?

Is rewelding on them and them removing that part any good? I was told that I shouldn't use the heads as they are now because they will cause hot spots. Any advice? thanks

Last edited by Jimmy P; Jul 21, 2005 at 02:18 AM.
Reply
Old Jul 21, 2005 | 02:49 PM
  #2  
Jimmy P's Avatar
Thread Starter
TECH Fanatic
iTrader: (177)
 
Joined: Jan 2004
Posts: 1,933
Likes: 1
From: USA
Default

TTT
Reply




All times are GMT -5. The time now is 08:44 AM.

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