ive looked everywhere...and found a site to get a rough compression figure but i know it cant be right...

00 ls1....standard bore and stroke...flat-tops (-4cc reliefs), 57cc and 59cc chambers, GM MLS head gaskets... i keep getting low 10.**:1's...wat am i figuring wrong

 

What are your cam spec's and head gasket thickness?

 

t-rex cam ...242/248 .608/.612 110 lsa, im not sure about the head gaskets there at home i think .058" is wat a buddy is telling me

 

looking into another thread....gm says .051 compressed