I have a 91 Integra with a stock B18a1 and I'm wanting to swap it for a 1st gen B16a, I know I'd be able to use alot of parts off of my b18. Could I just buy a b16 longblock and use my tranny,axles, for this??? I know I'll need the pr3 ecu but I can get one of those locally. If I did get just a longblock what all would I have to use off the b18 in order to make the swap work??? Or is it with the extra cash for the complete swap?? Thanks in advance.