Ive got a b16a2 right now and im getting a b20 block out of my friends wrecked Cr-v (usdm). I wanted to know everything that I will need to have this block swap work correctly. Will I be able to keep my b16 bolt ons like my jdm header and custom exhaust piping? Will there be any internals that are necessary to run correctly? Which ecu should I use? And keeping my b16 tranny, is that the best option? Also on the wiring and stuff. Will the block be affected if I have an obd2 to obd1 wiring conversion kit and running a 92-95 civic P30 ecu? Will I need a different clutch as well? Basically, what components will I not be able to keep from my b16 with just the block swap. Any info on how to do this correct will be greatly appreciated.

 

U will need a new head gasket for a B-20, then u need a L/S V-TEC oil line kit. U will need to take your head and fit it for the kit and plug the hole on the bottom of the head, and then have your head resurfaced. U can use all of your B16 parts including the clutch. The header is the only drawback, before u disassemble your header notice the clearance from the header to the oil pan, and keep that in mind when u assemble the header on the B-20 V-TEC, must have at least 1/2" of clearance to prevent boiling of the oil in the oil pan. All wiring stays the same. The B-20 has the threads on the back for the knock sensor as well. It also has the crank sensor just like the B-16. The only extra catch is well the Oil Catch can. There is info on the web for this.

 

Hey man check out this site. it will help http://www.c-speedracing.com/howto/b20vtec/b20vtec.php