Ok, here is my setup, I have a buddy who is upgrading his heads in his 9 second LS1 Camaro, so he is selling his ported, 806 heads, they push up to 500 rwhp so there plenty stout. Would they work well with my 5.3 thats my question? If i do go this direction if im pulling the heads i might as will take the dive and buy a fast intake as well.
2000 GMC 1500 reg cab short box 2wd with 5.3 motor, Thunder Racing TR224 on a 114 LSA 563 lift cam
Thunder Racing 7.4 pushrods
PAC 1218 single beehive valvesprings
Pace Setter Long tube headers
Cat delete
4000 Stall converter
NX 100 Shot, plate kit
true dual 3" exhaust with the Magnaflow race bullet mufflers.
HP Tuner and Wideband
3.73 gears w rear locker
I figure im gonna lose some compression but if i decide to go supercharged or turbo i suppose it wouldnt hurt.

 

These heads would drop my compression and flow well since im planning on going turbo or procharger. They are ported, not stock heads and the vavle covers and brackets do come with them.

 

anyone? These heads would drop my compression and flow well since im planning on going turbo or procharger. They are ported, not stock heads and the vavle covers and brackets do come with them.

Im forced induction now with a 150 shot, im planning either turbo or procharger. Either way, forced induction is in my furture.
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Ttt...

 

Are the heads milled at all??

 

Not that im aware of.