It occurred to me after seeing someone looking for a big fat head gasket in the FS&W section that we may need to correct something. Realized that we may have goofed up and want to fix it if we actually need to so I guess my question is "do we need to?" Our pistons are a cast set of 87mm oversized pop ups from Vic's installed after cylinders were bored to those dimensions. Bought some new dowels and installed the new gasket that came in our engine rebuild kit then installed and torqued the head not even considering the fact that the head gasket in the set is for the standard 86.4 1500 SOHC. Should we remove the head and look for a fat Race gasket as well and if so what size?? Opinions?