Camaro Jearmy

Using ls1 block, callies h beam rods callies crank, weisco pistons 9 to 1. Looking to make about 700 horse. Need some advice on cylinder heads...cam...intake.... Thanks !

Bob@BruteSpeed

iTrader: (16)

I'd shoot for a 9.5/1 compression ratio. 700 rwhp can be made with Patriot LQ9 Stage 11 heads (or something similar) with our blower cam and an LS6 intake easy enough with a ProCharger D-1SC. Bob

Camaro Jearmy

What combustion chamber and intake runner

blue00ZZleeper

iTrader: (5)

You would need to do it with a compression calculator....static or dynamic? Your combustion chamber size and head gasket thickness will play into it.... Just a standard LS6 intake manifold will do.

Camaro Jearmy

how many people are running a gm head with port work?? Is this a good route, or better off to buy an aftermarket set?

I8UR4RD

iTrader: (16)

heads with thicker decks are preferred -----AFR 225 or TF 225 have proven well for other builds. if price is an issue stage 3 317's or 243's will work. get a good gasket such as GM MLS or GM LS9 head studs instead of bolts. a good vent setup for the heads. ls6 intake is fine. higher compression is more dangerous. the 9:5 will allow you to roll on pump gas (93) this is also what i am planning to do. many of us actually.

Camaro Jearmy

Thanks for the advice..wanting to try to pick up a used set...not having much luck..Might order new ones next week if i don't find any.

I8UR4RD

iTrader: (16)

hey man, i have not bought anything used yet, and i have complete and utter confidence in what i am installing. it hurt the wallet, but puts me at peace. its nice to know that you have no chance of being shafted or not knowing what you are getting. i personally will be buying a new rear end heads and everything. the only thing i may get used is suspension parts. lca panhard etc.....

Camaro Jearmy

What kind of power are you looking to make? have you ordered a rear end yet?

Camaro Jearmy

Head studs worth the extra $120 over bolts?

blue00ZZleeper

iTrader: (5)

Head studs are deff worth the $120 bump in price.

Camaro Jearmy

Thanks for the quick reply...

fatmat80

I am another who is using factory castings on my setup. Stage 2.5 243s from PRC. Ls6 manifold. car works well for me so far. good luck with your build.

blue00ZZleeper

iTrader: (5)

I'm using stage 3 LS6 heads and are over 800rwhp with no issues....I don't plan to lean on them to much harder though.

Camaro Jearmy

anything over 700 will be great... i think the p1 will make that..?

TermnEatr

iTrader: (24)

I'm using untouched 243s besides lapped in valve work and springs and I'm shooting for 700-750 reason I kept stock heads is if I make my goal I won't touch them and saved good money but if I'm just short I know a good head will get me there.

Camaro Jearmy

Good point. I got a set of cnc'd 243s so I sure hope to hit the 700+ goal.