hey guys been awhile since I was on here. getting back in to the scene. I have a f20b sitting in the garage with bad crank and rods spun a bearing a while back. I would like to put a h22,h23a, or f23 crank and rods considering there all 55m. my only concern is would any of these combos work with using stock f20b pistons. TIA

 

Youd need to compare the compression height of those pistons to make sure they wont stick out of the block. Then verify the block deck heights are the same. Then wristpin size, and if all that checks out, I think it would work as long as you keep the crank and rods matched together.
This is a question for the F and H guys...