just curious on how one can spot an ITR head from a GSR head when both are stripped down... no internals... i got some help from 00-0187 "the itr head is ported and polished, the actual head has a very smooth dome feature to it, while the GSR head is not as concave."

any input would be appreciated.

thanx

 

thanks for the quote. its actually a very mild port/polish compared to some of the more aftermarket jobs done.... if someone wants to give him a more precise way of telling the two apart...go ahead . im sure there might be a number etched somewhere i am unaware of.


[Modified by 00-0187, 12:21 AM 6/12/2002]

 

The combustion chambers on a GSR head are more of a square shape. Flat on two sides and slightly curved on the others.

The ITR/B16 head, has a round more circular combustion chamber.

Kenton

 

the ITR head has lettering 'PR3' and the GSR has 'P72'. Look for the date stamp it will be around there.

 

gsr head has more square quench area and the intake ports have a more vertical direction

 

Which one would have better flow if the P72 head was ported compared to a ported Itr/b16 head? Reason to ask is I have a choice on picking up a gsr head or a b16 head as a spare to toy with. Any experiences? It is going on a b18c5

 

i'd take the p72 head.