NAEH2NA

ok so im building around a 650-750 whp car on a gt4088r ..i have searched cant find to much i no there was a post on this before but cant find it now ..i have a stock type r head ,stock gsr ,ported b16 and ported gsr ...all stock vlaves all stock combustion chambers ..just wondering which one to put on a 84mm bottom end ..want to see peoples experiences with each head and so on thanks

QuarterMileMaster

the pr3 (type r and b16) heads flow better than the p72 (gsr) heads. The Type R head and the B16 head are bascially the same except the Type R head comes with a factory mild port and polish. So depending on the extent of the port and polish of the b16 head, if it's more than the Type R head, go with it. If it's the same it doesn't really matter cuz they'd be identical. Either way use the Type R valve train (cams, valve springs, retainers) unless you plan on going aftermarket with those.

NAEH2NA

ya i knew that the type r was the same cast besides a mild port im running skunk valves train on type r cams ...but seen alot of turbo guys on a gsr head ..and i heard that it was a more staright shot for air in the gsr

EARLdaSQUIRREL

both the gsr and pr3 castings flow about the same amount of air, i would use whichever head has the best port and polish job, or sell them 3 of them and send one to get it ported and have the chambers opened up to 84mm to match your bore

in the end they will all flow great and im assuming you will use a victor X or similar manifold so its not all that much of a difference

atec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by QuarterMileMaster &raquo;</TD></TR><TR><TD CLASS="quote">the pr3 (type r and b16) heads flow better than the p72 (gsr) heads. The Type R head and the B16 head are bascially the same except the Type R head comes with a factory mild port and polish. So depending on the extent of the port and polish of the b16 head, if it's more than the Type R head, go with it. If it's the same it doesn't really matter cuz they'd be identical. Either way use the Type R valve train (cams, valve springs, retainers) unless you plan on going aftermarket with those.</TD></TR></TABLE>

http://www.team-integra.net/fo...Topic


Greg Sumaroo stated that with the lower head volume in the GSR head, he finds that it works well with dished pistons in FI applications whereas the ITR head's larger head volume works well in N/A high hp motors using domed pistons that fill in the volume.

boosted timebomb

IMO....i would use a vtec head off of a z6.
just playin i hope you get it running and you better take me for a ride in this one before you wreck it.

b18sihatch

that i believe

NAEH2NA

so run a gsr ?