who knows the facts about this head? does it have 33mm int valve? and 84mm combustion chamber? is it off jdm b20's only? my b20 came with this head and not a p75 head, also my b20 came with a tall intake manifold, and i have heard different things about htese non-vtec heads.
right now i am runnin my old pr4 head, cause it was ported and i was led to believe that the cams had more lift but now ive heard a p8r will outflow a ported pr4? anyone know the truth?

 

Theres a P8R for sale thread in the archives, search for it and Yeah 33mm in valves 84 mil CC and apperently will outflow or close too a ported LS head. hope that helps. Oh btw my B20 with P8R came with a highrise mani and the crappy 75in 75 ex cams...