i had recently got a pr4 and having i port & polished 3 angly valve on it jge valtrain in it with crower 403 allready have headers and intake im putting it on my b18b but the head on it now is a p75 is it the same head or is one better than the other after tunning on it will it take these v tech people that are all ways braging that i will never come close to having the horsepower unless i swap for a b16 v tech head

if i am not mistaken you have a better head in the PR4. I believe the valves in the PR4 head are bigger if not the same size as the VTEC motors, correct me if i am wrong? The PR4 head is the closest to VTEC without actually getting it, so you have got yourself a goof head in that one.

ok disregard everything i just wrote. Sry man if that confused you, i saw the PR and just thought of the P8R head which is the one i described. I apologize for that, but the information is correct to my knowledge, just not for the head you have.

wow man, thats some piss poor typing...

3 angly valve lol...

anyway i think your asking if a pr4 head or p75 head is better. the pr4 has smaller ports but if its been ported that doesnt matter. use the one that has the work done to it.

Just make sure that you retain the B18B valve cover because on the B18B's the PCV system is on the head and on the B18A's its on the block. So if you combine a block that doesn't have it with a head that also doesn't have then...you guessed it you motor is no longer equipped with the PCV system. Besides the B18B valve covers are nicer looking anyway right?