Whats up with my head??
 

I bought a B16 head for my ls/vtec a few months ago. The guy told me it was a B16A2 head off of a JDM 99 Si-R ll in Japan. However I was just looking at it and the stamping says it was made in 91? It's definately from Japan, but does this stamping mean that its not a B16A2 from an Si-R ll or what? Instead is it an B16A1 off an Si-R? I mean if the A1 and A2 flow and produce the same numbers I guess I dont mind but I am Pissed that it might not be what I was impressioned it was. If any knowledgable person can help me out with these quesions I'd greatly appreciate it

Re:Whats up with my head??
 

Also if it is from a 91 B16A1 PLEASE tell me it will make the same numbers in my ls/vtec setup that a B16A2 head would???

Re:Whats up with my head??
 

Theyre basically the same nothing to get mad about. You would never notice a difference between the two.

Re:Whats up with my head??
 

is there any difference in stats though?

Re:Whats up with my head??
 

Not enough that youll ever notice

Re:Whats up with my head??
 

and would my code be the A2 like the 99-00 even though its older seeing as how Japan has everything for years before it comes to the states?

Re:Whats up with my head??
 

dont quote me but Im pretty sure that the A2 cams were changed alittle for topend, and the A1's died off alittle to soon in the rpm range. but besides that I think they are the same spec wise.

Re:Whats up with my head??
 

Japan and the UK had B16A2's from 1991 ;) Mine is a 1992 B16A2.

Re:Whats up with my head??
 

Here is europe to.
You get B16A2'a in EG's

Re:Whats up with my head??
 

it could be a 92 SiR II from a civic SI and jsut made in 91 for the production year, pre casting and all

Re:Whats up with my head??
 

It's probably an A2. In Japan some models of the EG came out in 91.
http://www.honda.co.jp/pressroom/library/auto/CIVIC/

Re:Whats up with my head??
 

then it must be a JDM 92 Si-R ll head cast in 91. like I said the guy told me it was an A2 and it is identicle to my bro inlaws 99 A2. however... I noticed the cams on my JDM are much wilder than hiscams being USDM. So if the A2 cams were changed from the A1's and made more top end increase. I cant wait to feel mine seeing as how they are the wilder JDM A2's. thanks guys this clears up alot..... :)

Re:Whats up with my head??
 

same head as the 1 g b16 just different cam's

Re:Whats up with my head??
 

So, the head says PR3-1 (cast) into it?