my brother blew his d16y7 but wants to keep the vtec head, we have 2 different engines that we could use the blocks from, one is a crx hf engine (don't know the engine code but think its d15b6) and the other is a d15b8 (CX) engine. Which one of these would be easier to put the y7 head on? I know we had alot of problems putting an a6 head on a zc because the holes for the head bolts didn't line up, but what about these engines?? Compression ratio and power gain is not an issue here, its just a daily driver, also will the oil pan work on these engines?? Basically are all the D series engines compatable like the B series are??