i just blew (overheated) my b16a3 head and i wanted to know which b16 head is better obd 0 obd1 jdm or usdm or the one out of of the 99 si's iam not talking about the bare head i mean with cams and valves already in their please dont flame iam a bigginer

 

Neither one is necessarily "better", I personally would just find the newest head possible (low mileage is always good). The newer cams are ever so slightly bigger but they're not going to make a noticable difference (unless you found an old SiR head from an auto or something). You'll also be better off with the newer intake manifold. I personally like working with new heads simply because they generally have less wear as I mentioned before and I like billet cam rails (the old cast ones are ugly) but that's just my personal preference. Just curious too but how did you "overheat" your old head? Warp it? Seize something?

 

I believe they're all the same for the b16. Itr heads are b16 heads with upgraded springs, cams, and the factory p&p.

 

well i dont know if its worpped yet i got a radiator leak and my heat gauge in the cluster asnt workign apperently and i didnt smell the honey smell until it was to late so the sir head would be better i will still use my intake off a b16a3 so they are racticly the same?? do any of u know how much would it be for a machine shop to check it and fix it? or would it be cheaper to buy a new one becasue i seen them here for like 400 i dont need the valve cover intake any sensor or cams i just want it with the valves and stuff cuzi dodnt know how to fix that yet or put them in

 

Yea the actual cylinder heads are the same, just the cam rails are different from the JDM 1st Gen B16's (ugly cast which does nothing to affect performance, I'm just ****) and the first B16's that came in cars over here (billet). Personally I would pull your current head, take it to a machine shop where they have a precision straight edge to see if it is warped. If it is slightly they should easily be able to deck it and you'll be set. It takes a lot to take out a cylinder head, you haven't already fixed your radiator, refilled with coolant, and tried starting the motor have you? If you do end up getting a new head it really doesn't matter if you're planning on moving your cams and IN manifold over. You could also move your cam rails from your current motor over too.

 

yeah i fixed my radiator. iam pritty good at doing labor i mean i already replaced the head but didnt take it to a machine shop cuz i though i wouldnt need it i will proably take my head off this weekend and take it to a machine shop cuz when i put the head gasket back on. it woudnt smoke but like 5 minutes after its on it starts smoking( white) and idling again so i think its still burning anti-freeze