ok... so im replacing the head on my 2000 SH and my head casing number is (P-13 HF-2). And from what I already know about the SH/Base models I'm pretty sure that there is no difference in the heads. However, I've got a JDM H22a head that I have come across and it's casting numbers are (P-13 HF ). Also just for comparison, I looked at my '93 H22a1 and it's casting number is (P-13 HF-1). I wasn't positive if that was a JDM differnece or a year difference....

I'm pretty sure an H22 head is an H22 head, but i was mainly curious if anyone knows what the HF and the suffix means....?

 

hf2 97&upusdm hf1 96-93usdm hf jdm

 

burrnneeeettss

draglude is right, but they're really all the same.

 

yea.. we just measured the cam journals and the cams and everything seems to be cool....

 

My 2001 H22A4's head is stamped HF-1. But it's also stamped PDE, so who really knows what the heck's going on