2001 Camaro M6 the car has 383rwhp and 382rwtq it has Torquer 2,LS6 intake,ported TB,stock 241's and all bolt ons includes Centerforce stage 2 with stock 3.42 and now we are changing the heads to Patriot stage 2.5 ported 243 how much it will gain in hp and tq ? we found out the stock heads and pistons has alot of carbon deposit so I think we will gain few more hp's by cleaning the pistons right?

 

i hear that if you have alot of carbon buildup it can rob you of close to 10hp and as far as hp gain i would say 415 to 420wrhp. do you have headers? ud pulley? if so even more hp.

 

I will list everything the car has :

LS6 intake
ported TB
torquer 2
LS6 ported oil pump
LS2 timing chain
hooker LT
SLP LM1
3.42
Centerforce 2
SLP pulley
TB bypass
stock injectors and fuel pump

thats all I can remember for now I really hope we can hit 420's with the new 243 heads

 

i think 430 to 440