PTV help please and milling options
Thread Starter
TECH Fanatic
iTrader: (42)
Joined: Sep 2005
Posts: 1,430
Likes: 2
From: North Fort Worth
PTV help please and milling options ok stock pistons and i a going to be putting on some 243's i have a 228/232 .588/.574 112+4. i want my compression to be 10.9-11.0 how do i need to mill and still have enough valve clearnce. i am also be using stock gaskets. thanks for the help. also if anyone could help me find out my DCR that would great. how much will the DCR change with almost a whole point increase in SCR. thanks
nick
nick
Its not possible to tell without measuring. Stock LS6 heads start as 65cc chambers. figure every .007 you mill drops the chamber volume by 1 cc. Without measuring, you cant tell how much space you have P to V. Use this page to calculate your SCR / DCR: http://www.kb-silvolite.com/calc.php?action=comp
If your heads have stock valves then the valve drop should be .150", you should be able to mill them .030" to get them to 61cc and still have enough P to V. We have run our 5.3 heads with 2.02 valves and a valve drop of .100" with that cam.
Thread Starter
TECH Fanatic
iTrader: (42)
Joined: Sep 2005
Posts: 1,430
Likes: 2
From: North Fort Worth
well i got some LS6 milled .018" and i will be using stock LS1 gaskets. am i going to have PTV clearance probs you think or not. i know that you said its not really possible with out measuring but i guess what i really want to know how tight my cam is before i milled them. anybody have an idea?? thanks
i have a 228/230 cam with stock ls6 heads milled .018 and a cometic .045 gasket.I have .085" intake clearance and .135" exhaust,stock block etc..you should be fine,but check it because if your cam is not degreed or has a lot of advance ground in then you might be close on the intake..I have a 112 lsa with 2 * advance
Trending Topics
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
