ive done alot of research on this and to put forged rods and pistons on a jdm d15b vtec block is a mission because of the pistons coming out of the block.

d15b has d16 rod length and d16 deck height only difference being the piston height

fj distributers had custom length rods but are not in buisness anymore

should i ...

A. get d16 eagle rods and d15b7 forged pistons ( same piston height as d15b)

or

B. get d15b7 (134.5mm vs 137mm) forged rods and vitara d16 pistons?