What is the cc size for a lt1 head.

 

If you are referring to the size of the combustion chamber, figure anywhere from high 53s on earlier year heads, to possibly as high as mid 57s, depending on production year. I personally, have not found them that high. GM spec for the LT1 chamber is 54.0 cc.

 

Oh ok Im using 1992 style heads.

 

Consider the chamber volume to be (appr.) around 54 cc., +/- .3-.4 cc.