b body professor

Hi, i have ls6 engine with .020 pistons and 799 heads milled about .020 with gm MLS head gaskets , in my 96 impala , now the engine is in the car and i'm looking to get a mail reflash service this week to start the engine and i have no idea what compression ratio my engine has , i don't know how to calculate it since every thing is assembled. so any help would be much appreciated
thanks guys

Jack

64post

iTrader: (5)

If you milled .020" off your 799's They would be approx. 62 cc, if it helps.

b body professor

so that makes them 10.8 CR ?

thanks man