I was thinking about getting some pi ported heads for my 02 s281 saleen but was wondering if the gains are worth the money?And if so who out there has the best an will i have too reburn my chip to get the benefits of air flow,adjust A/F etc....
My mods are 42lbs.inj,mac coldair kit,90mm cobra mass air,cobra dual fuel pump an tank,mac headers,prochamber,flow master 2 chambers,alum driveshaft,3.73 gears,66mm pully on s/c,75mm tb,diablo revolution tune,comp cams,bee hive springs only thing not changed are the underdrive pullies will i see any benefit by changeing them at this point.thanks.

 

What are they asking for them? Why dont you just have yours ported instead of buying new ones?

 

I don't want too go through the trouble of sending them off for a few weeks new ones cost about $2000 for the pair.from what i have seen and a port job i think is about $600 to $700 a head . so between shipping and down time it seems easier too just buy the heads and reuse my springs cams etc.just don't know what kind of power i will get for the money?

 

JESUS!!! $2000 a pair! Thats outragous for STOCK ported heard. You can get some good Stage II heads from Modular PowerHouse for that!!! LOOK HUR!!!

 

so about $1850 plus shipping use my cams?rockers etc..or will the rockers fit on those ported heads.cause i only saw mention of springs valve guides etc.
and will the hrsp.gain be worth the expense.I have a stock bottom end pushing 389 rwtq in 85 degree temp.down here in fla.

 

you already have a blower, why not spend that money on a forged bottom end??? You should be close to a new bottom end installed for 2k, i have seen em priced around 1200 bucks just for the parts.

About 12-14 LBs of boost would put you at some really nice numbers, and you wouldn't have to worry about pushing the motor beyond its limits anymore.