Is there a way to tell of the piston has been replaced other than taking off the head? I know the wiseco that I put in my 87 has numbers stamped on it. I guess I could pull the head and find out. I have a cometic gasket set for a 1988-1990 that I got in a box with the 1987 I am rebuilding.  This guy is gonna be shocked when I start tearing this thing down in the truck stop parking lot. Thanks guys