i have a b21 setup going on with a b16 block (87mm bore and 89mm crank with custom 12.5 pistons to clear the head.

now im wondering if its possible to run a 92 or 95mm crank with a deckplate? this would result in either 2.19L or 2.25L. im guessing it should still be able to clear the head because of the shorter piston correct? or would the longer rods needed make the pistons not clear anymore?

 

if your doing this i would use a B18 block as it is 8mm taller than a b16 block.

 

and you should be able to pick up a B18a/b block for $100