Originally Posted by RicoD
just like the B18C GSR is the same casting as the B18C Type R yet different internals... that part just... gah nevermind :run:
No where did I say that. I stated that the B16 and B18C5 are almost identical heads, aside from the upgraded type r valvetrain. The only point where i was incorrect was where I stated that the B16 gives a higher CR, which it doesnt. The difference in power from the B18C1 to the B16 (however minimal it may be, which is still open for debate) is due to the better flow of the B16 head.