Help identify Honda heads please| Grassroots Motorsports forum |

midknight Reader
6/20/12 1:23 p.m.

I've got some Honda heads that I think are d series Civic heads, but can't find much in the way of identification. Could go to Honda boards, but all i see there is a lot of argument and flaming, and besides, this really is the Borg. If it ain't know here, it's not worth knowing . So I ask the great collective to shine some light for me. One head has really shrouded chambers, to the point that I am thinking it's probably some kind of d15, the other is really open, maybe a d16 or even an Accord head? Other thing, I was going to try baking soda blasting the chambers and valves. Stupid move or ok? Pics below. Thanks guys.

http://www.flickr.com/photos/midknight71/7409132150/

http://www.flickr.com/photos/midknight71/7409133904/

http://www.flickr.com/photos/midknight71/7409133070/

http://www.flickr.com/photos/midknight71/7409136738/

http://www.flickr.com/photos/midknight71/7409134722/

http://www.flickr.com/photos/midknight71/7409135518/

DaveEstey Dork
6/20/12 1:55 p.m.

Are these heads not in your possession? They should have a code.

midknight Reader
6/20/12 1:59 p.m.

Crap, wrote all that and forgot to mention the codes. One head says PAA-1, the other PSJ-4. Thanks Dave, I was hoping you would pop in.

DaveEstey Dork
6/20/12 2:17 p.m.

Pretty sure the PAA-1 is a Honda Accord 2.3 (F23). If it's a Vtec version it will have a small solenoid (I think) on the back left corner of the head.

Not sure on the PSJ-4.

steronz New Reader
6/20/12 2:21 p.m.

Are you sure it's PSJ and not P2J? P2J-4 would be a 96-00 Civic EX, which looks a lot like what you have pictured.

midknight Reader
6/20/12 2:46 p.m.

probably a P2J-4 as I can be a bit dyslexic. Is that the Y-8 head then? Thanks Dave and Steronz!! Can soda blasting clean these up a bit? Can an F23 head bolt up to an F22 motor? Thanks guys

steronz New Reader
6/20/12 3:40 p.m.

Yes, the P2J is a Y8 head. You can put the F23 head on any SOHC F-series block, but it's generally not done since the VTEC and non-VTEC engines were rated so close together, and the non-VTEC engines are lower compression. We're talking a 5-10 hp bump, at best. That's not worth the headache of figuring out wiring and potentially rerouting coolant hoses.

No idea about soda blasting, someone else will have to chime in.