ahh well as the title goes..... my b18a1 swap had a bad rod and needs a rebuild but my friend has a b18b bottom end and i was wondering if i could use that bottom end with the b18a1 head... i know that the a1 head is weaker but at least ill be on the road.... i shouldnt have a problem with the obd1 bottom end with my non obd ecu and wire harness or will i????