Originally posted by 4-banging
terminolgy 101:
pr3 piston heads are from the si yes/no
p72 are the gsr's yes/no
?'s:
by running the gsr block with no mod's to it and putting my b16a2 head on it, will yield what kinda C/R.
will the b16a2 valves match up to the gsr's piston heads?
can the si pistons fit the b18c1? aren't the cylinder walls larger diameter?
If by piston heads you mean cylinder heads, yes, a PR3 head is a "B16 head", a 92-93 "GS-R head", or a "Type R head" and a P72 head is a 94-01 "GS-R head." As for the CR, I don't know what it would be like, because B18C engines use lower compression pistons then B16s and B16 PR3 heads are lower compression heads then P72 GS-R's. The end result should be lower then the stock B16 or B18C engines, however. The pistons are interchangible, and the valve reliefs match.