ls6 block decked .003
3.905 bore / 3.622 stroke
6.125 rod length
1.309 compression height
6.6 piston domes
.043 gasket w/ 3.905 gasket bore
66cc combustion chambers

i come up with pistons out the hole .008, .035 quench, and ~11.73CR

 

Ttt

 

I'm coming up with roughly the same numbers.

 

Your calculated cr is exactly what I get.

Richard

 

thanks guys

 

I'm just curious, can you guys post up the formula to calculate this?