5.3litre

iTrader: (6)

ok here is my dilema, i ordered a turbo kit and i can't figure out which sets of heads to use. 1st set i have is stage2 patriot performance ls6 heads that have a 59 cc which i know will be way to much compression even on dished piston. How hard would it be to open up the chambers to 72cc? is it even worth it?

2nd set is some 317 stock 6.0 heads that i want to get ported and polished if i decide to use them. what companies do yall reccomend to port them?

so what should i do? i plan to run 15psi max and try to make 700rwhp with a t-76 turbo. any help would be great. i need to get all this done before my turbo kit gets here and also the motor the heads will be goin on is a 370ci. motor. thanks

smokinHawk

iTrader: (48)

6.0 and port them, sell your ls6's and use the money for the port.

5.3litre

iTrader: (6)

who should i have port them?

Gunnar@Patriot

iTrader: (20)

We can open up your 59cc heads to around a 68cc with no problem. To re CNC the chambers would run around $300.00. We can also port your 317 heads. The pricing will vary depending on how you want the heads, just ported, assembled, etc. Give us a call and we can go over the options.

Pro Stock John

iTrader: (34)

700rwhp... on pump gas? Intercooled?

5.3litre

iTrader: (6)

yes intercooled. i bought a PTK kit with a t-76 turbo and as far as the gas i have access to 101 octane if it is needed.

blackbird345

Gunnar, what would the CR be if u opened them up to 68 CC?

blacktransam

iTrader: (13)

Trust in gunnar.. he took care of me and i have never looked back.. 430+hp on a little NA 346 with only 25* of timing and a rich tune.. i have no complaints

Gunnar@Patriot

iTrader: (20)

PM or call us with your engine specs and we will calculate your compression for you.