4thGenTA

iTrader: (11)

Ok I am going to be useing the thunder racing cheater cam and can't afford the AFRs. It seems like patriot performance heads are more in my price range. I am just not sure if i should go with there ls1, ls6 or the 5.3L heads.
I obviously want whichever will make the most power. But i don't want any problems with valve clearance or anything else. What would you do if it were you. If there is other heads that will work better that are in the 1200 range ler me know. I will be useing stock exhaust manifolds and cats.

Know for the specs on the cam
215.9/231.4 duration .604/.584 lift LSA 116.9

LS6 Heads
Lift 2.02" Intake 1.57" Exhaust
.100 72 cfm 65 cfm
.200 140 cfm 124 cfm
.300 202 cfm 160 cfm
.400 244 cfm 196 cfm
.500 280 cfm 220 cfm
.550 291 cfm 226 cfm
.600 304 cfm 229 cfm

LS1
Lift 2.02" Intake 1.57" Exhaust
.100 67 cfm 61 cfm
.200 133 cfm 108 cfm
.300 194 cfm 147 cfm
.400 242 cfm 183 cfm
.500 274 cfm 205 cfm
.550 290 cfm 213 cfm
.600 296 cfm 220 cfm

PREDATOR-Z

I would use either 5.3L stage 2 with ~ 215 cc int runners
or
Dart cast 205cc

52172

iTrader: (2)

I would get the dart 205 heads and then if you want to have them ported down the road you will have a great aftermarket casting. Plus they flow very good as cast. that is what I would do.

4thGenTA

iTrader: (11)

to the top

52172

iTrader: (2)

you might also want to look at the new gen TEA stage 1 heads and their flow numbers or even give them a call their heads are better than PP and the same price. Nothing wrong with PP though. I after thinking more about it think the TEA stage one heads utilizing the stock valve sizes and they flow a shitload just as much as heads with larger valves installed would be a great choice to go with because of the high velocity of the airflow. Definetly call up TEA and talk with them about their new port program and their stage one head.

4thGenTA

iTrader: (11)

What about the new heads from texas speed will they work with my setup

52172

iTrader: (2)

there you go those are nice they would work just fine with your setup and the flow numbers look about the same.

camarokid94

iTrader: (2)

could but i called and intake runner size they said was in the 235 rnage and there CNC dart heads in the 237 range thats huge i think.

PREDATOR-Z

Yeah, IMO a bit large for such a cam (215 int DUR), but fine for bigger ones, ie: Torquer II, 233/239, MS3 etc....

PP LS2 243's are 227 intake 80 exht.

Patrick G

iTrader: (14)

The answer is obvious, but not easy to find. Get the highest flowing head with the smallest cross-sectional area in the port, with the smallest cc chamber you can afford. A nicely ported 5.3L head is usually the way to go as so many of the ported LS6 heads have HUGE cross-sectional areas and low velocity at low rpm. A PRC 5.3 or a TEA 5.3 would probably meet all these criteria with your budget.

STRIPSTAR

iTrader: (4)

Yeah, A quality 5.3 head will make great power and the price has fallen alot.

Layn_Low_247

iTrader: (1)

I've got some MTI Stage IIe's if your interested PM me.

4thGenTA

iTrader: (11)

I was thinking about the 5.3L but wasn't sure if i would run into any Piston to Valve issues. Whats the lowest cc i could get with out issues. I would like to run as much compression as possible on 93 octane with stock engine.

cyphur

iTrader: (10)

I don't think you will run into any PtV issues with the PRC 5.3s, but call someone like Jason, Trevor or Joseph @ TSP and they will help you out and figure out what is best for your setup. That should work well with that cam.

4thGenTA

iTrader: (11)

i was looking at the PRC 5.3 and was wondering which one would be best for me. they have a stage 1.5, 2.5r, 2.5s. Theres not a very big price diffrence only a few hundred dollars. I am willing to sacrifice some low end for more highend if it will make the car run a quicker et. I am putting a 9in rear in with 3.7 gears and a locker. So i will be launching the car at a reasonable rpm with DR. Will the heads i choose make a diffrence on emissions? The cheater came is supposed to pass emissions and i need it to.

Thanks for all the help everyone.

cyphur

iTrader: (10)

Call TSP and talk to them, they port the heads, they will best know their product.

STRIPSTAR

iTrader: (4)

Um, if your in philly they dont do emissions anymore so it doesnt matter.

52172

iTrader: (2)

whats up with TEA saying their new port program on their ls1 head outflows their 5.3 head? Does anyone know the reasoning behind that? Is it just a comparison of their new port program against their old port program or was their 5.3 head ported using the same program?

Oh and back to my original recommendation I would go with the PRC cnc ported Dart heads for only 1500 bucks that looks like the best deal around. Those are aftermarket cast heads it might be worth spending the little extra for the aftermarket castings.

4thGenTA

iTrader: (11)

Really, do they just scan the computer for codes, becaues last year i failed because i disconected my battery when i was installing my radio and amps and didn't drive it long enough to reset the computer or something like that. Ended up costing me $180.

just-a-z

iTrader: (25)

CNC'd Darts from TSP!!