Before I get flamed on too bad, i have been searching and going though every b20/p8r thread I can get my grubby hands on. Anyways I just picked up a JDM b20b and think it has the P8R head. Heres a pic of the stamping, just wanting to make sure they arent all stamped with this:

 

yes thats a offical p8r head bro you struck gold man. thats my plan in the future soon also

 

I just picked up the same motor.

 

Alright!! I paid 515 including shipping from http://www.tigerjapanese.com The motor is clean as all get out and the p8r is just an added bonus. When I bought the motor I thought it was just the long block, come to find out it came with distributor, alternaotr, intake and exhaust mani's and even the power steering pump....all of which was removed, but for 515 bucks you cant go wrong.

I have a t3/t4 .50ar that im going to put on this motor, so the low compression is another added advantage for me. I think im going to port match my intake since im running an LS intake mani and the p8r has much larger ports then a stock p75 head.

Im hoping to make atleast 250whp at 10-12lbs of boost on a bone stock motor!