b20 help

i currently have a b16 in an eg coupe and want to go with a crvtec setup im wondering if when i swap the blocks out can I put the pistons from the b16 in to the b20.

the b20 got a bigger bore size then the b16 What alot of people do is use the b18a/b block so that way they can put their pistons rods etc in their but the b20 you cant