well i guess it was stupidity on my part. i had my 99 gsr bored 25 over to accomidate my pistons, well i didnt even think of the headgasket being to small. anywho, will a 30 over headgasket for a b18c1 block fit my 25 over block. i know if the water jackets line up then it will, but does anyone know for certain? thanks in advance P.S. was unable to find a headgasket for 25 over b18c1 blocks.

 

anyone?