[Z06] gm head gasket
03-28-2015, 11:39 PM
#1
gm head gasket
What is the head gasket bore diameter? For a gm head gasket. 2nd ? Block deck height on a ls7. 3rd piston to deck.4th top ring down. 
what does that all mean, is it cp ratio!, an how do i find out, what my cp is in my car. thanks
what does that all mean, is it cp ratio!, an how do i find out, what my cp is in my car. thanks
03-29-2015, 10:03 AM
#2
Melting Slicks
Factory compression ratio is 11 to 1
I can answer some of your question - GM gasket about 4.15 inches, deck height is 9.24 inches, gasket thickness is .051, and the other piston deck measurement is usually about .000-.005 in other words the piston is flat with the deck of block. Not sure on ring depth but usually that adds about 1-2 ccs.
03-31-2015, 10:25 PM
#3
I can answer some of your question - GM gasket about 4.15 inches, deck height is 9.24 inches, gasket thickness is .051, and the other piston deck measurement is usually about .000-.005 in other words the piston is flat with the deck of block. Not sure on ring depth but usually that adds about 1-2 ccs.