Potential problem with new build
Thread Starter
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
Potential problem with new build To make a long story short my pistons are .058 out of the hole. Evidently my block had been milled before. Anyway... my builder told me that I could just use a .072 gasket and that would still give me an acceptable c.r. My problem is I am thinking my ptv will be much smaller? Am I right here? I plan on running ~240 intake x ~252 exhaust cam. Should this fit with an unmilled set of LS7 heads? If I get a valve job on them will that give me more valve drop? Oh yeah, my pistons are -7cc diamonds. The valve cuts are 15 degree though. I probably need to get that recut huh? Any help would be greatly appreciated.
TECH Apprentice
Joined: Jan 2004
Posts: 305
Likes: 0
Wow..No way the block was milled down that far.
A more likely senario is the wrong rod length/piston pin height combination.
better check the pin height info on the piston box, measure the pin height on the piston. Then do the rod info, I think the answer will be found.
Dave
A more likely senario is the wrong rod length/piston pin height combination.
better check the pin height info on the piston box, measure the pin height on the piston. Then do the rod info, I think the answer will be found.
Dave
Trending Topics
Thread Starter
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
The shortblock is put together and he told me I wouldn't have any problems as long as I used a thicker gasket and used a bigger chamber on the heads. By the way how thick can cometic make gaskets before they become a problem?
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
Thread Starter
Joined: Aug 2005
Posts: 2,649
Likes: 1
From: Mont Belvieu, TX
Update!!! Just got off the phone with Joe. Good news!! The pistons are only out of the hole .030. Much, much better.Now I can run a crazy *** huge bitch of a cam and still have decent Ptv. Even with a 70 cc head and a .072 gasket my compression will still be over 11-1. God, I feel so much better!!