OK I see you guys are undecisive about certain parts and what can be swapped over or what not. You can use H23/f22 rods in a b20a just fine. No jump in compression though! I thought rjudgey would at least know that! And b16/b18 pistons work but the pins are the problem. Weisco's make em for the B20a and in any cr you want. B16/B18 flywheels and clutch's work as well but with a tiny bit of modification. H22 valve springs and retainers are direct fit as well. Anything else for you guys????