I have a pair of ported LS1 heads that I just pulled off my car. They are the stage 2 porting and have a set of low miles 918 springs with Ti retainers. I made over 415 hp with these and 224 cam and slp headders. I swapped them for a set of PRC LS6 stage 2.5 heads and 92mm fast intake 90mm tb and saw no increase of hp.
I am looking to get 600 +shipping for them as they sit. or 750+ shipping if I take them to a local machine shop to be hot tanked

 

added pics and scans

 

so how is it that you upgraded heads and intake and didnt get any gains? it probably says alot for these heads or is your tune way off now?

bump for some good looking heads!

 

The car has been totally retuned, and if it was not so much work I would have put these back on. I have allways heard that Jay was very good at what he does, it cost me 1200+ to prove it.

 

sold!!!