I keep hearing about which one is which & I'm still not sure.
Does anyone have the end all list of B16 heads?
I'm thinking about a cr-vtec & this seems to be the cost effective head for this
combo but I'm unsure which casting # I'm after......how many are there? Which one's share the same castings? Is there any real difference in them after a pro porting job?
Thanks

 

Pr3 is the most commonly use b16 head, b/c it shares the same casting as the ITR head.

 

as far as i know......all B16A heads ar ethe same..........ITR and CTR heads and hand ported from the factory.

 

yeah you have pr3 and p72(gsr)
there is minor differences between newer and older pr3 heads.aside from cams and electronic stuff; older pr3 heads have extrude cam caps and newer have machined. also older pr3's have less casting flaws.

 

I can't remember where i sourced the info, but yes the 1st gen B16A head seems to have the best casting, but the weakest cams (hp wise). Use a good set of aftermarket cams like Shunk II, and perhaps some better springs, and you'll have a very good top end.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deetz &raquo;</TD></TR><TR><TD CLASS="quote">I can't remember where i sourced the info, but yes the 1st gen B16A head seems to have the best casting, but the weakest cams (hp wise). Use a good set of aftermarket cams like Shunk II, and perhaps some better springs, and you'll have a very good top end.</TD></TR></TABLE>

as far as the spray bars and casting i agree, but only automatic heads had the weaker cams........SirII had the better cams out of the B16A's.......