Dickie-311

iTrader: (1)

2003 LQ4 , texas speed 2.5 ls6 heads 64cc , .054 head gasket .

the_merv

iTrader: (88)

Here ya go..

http://www.rbracing-rsr.com/compstaticcalc.html

Dickie-311

iTrader: (1)

anyone know the cc dish on a LQ4 piston ?

LS 60 APACHE

if i remember correctly been a while since i did mine,my stock lq4s were 11 cc and the speed-pro pistons i installed were 9cc. my comp with 65 cc l92s with cometic .035 gaskets is around 10:2. thats at 370ci. im sure someone will come along to verify or correct me if im wrong.

Dickie-311

iTrader: (1)

with stock pistons(6.7 cc dish) , 63cc head , .051 head gasket , piston out of the hole .015 , comes out to 10.69:1 does this sound right ?

the_merv

iTrader: (88)

Piston comes out of the hole about .005-.007"..that's what I've seen anyways..