What would my 1988 GTA come with from the factory, cast or forged pistons? My car came with a hydraulic roller cam from the factory, I just can't see them being cast. Anybody know for sure?

 

cast only they never came with forged ones.

 

Cast pistons with 4 valve reliefs.

 

only cars I know of that came with forged pistons in EFI cars like ours was the 1985 to like 1990 ford mistake 5.0, what was GM thinking, no headers, no dual exaust, no forged pistons, no stick with the bigger engine, no rack and pinion steering, and a 7.5-7.625 rear to top it off? well at least we got 5 lug nuts per wheel, big whoop-dee! Its a good thing that replacing all those lame parts to make our cars go fast is so fun. https://www.thirdgen.org/rides/index...ew&rideid=3980