Search results for query: *

All i need to know is if 91 CRX HF block and 89 CRX Si block are the same. I am pretty sure they are just different computer intake head and tranny.

from the factory the hf had 63 hp and the si had 107 so i think i would gain more than 1 to 2 hp and the exhaust are totally different nothing alike the cat is les than 6 inches from block on hf as the one on the Si is under the block not right off the head.

I need a site with good info on taking Si parts and putting on a HF to convert. Any info will be greatly appreciated. I was wrong it will be 89 si to 91 hf if that makes a difference but i don't think it does