Heads & Cam Kit

[jpn8801]

Hello All

I would like to get above 400RWHP, right now I have a stock WS6 Trans Am w/ 3" Exhaust. This is what I am considering...

AFR SLP Cylinder Heads

Specs:

Intake flow up to 304 CFM at .500 lift, 320 CFM at .600 lift @ 28” of H2O.
Exhaust flow up to 250 CFM at .600 lift @ 28” of H2O (using 1-7/8 inch exhaust pipe).

225cc heads with 65cc combustion chamber.

CNC ported intake and exhaust ports, and combustion chambers.

2.080 intake, 1.600 exhaust standard length valves.

3-angle radiused valve job.

2.080 intake, 1.600 exhaust valves.

7° titanium retainers and valve locks.

1.290 inch double springs, 135 lbs seat, .600 inch maximum lift.

Emissions-legal CARB EO #D250-4.

Fully assembled, ready to bolt-on.

& a Matched .590”/236º int. 590”/236º exh. camshaft.

Int Valve Lift: 590"
Exhaust Valve Lift: 590"
Duration @ .050 is 236 Degrees
Centerline - 112º
Lobe Separation - 112º

SLP states that this Head & Cam combo will produce 525RWHP.
What do you think?

[nhraformula]

slp is full of shit and a rip off.
making 400 rwhp and staying Cali smog legal can be done.
you will need shorty headers,
http://www.neweraperformanceparts.com/default.asp?S=503&A=E&PKV=e6573|0
a cam no bigger than this,
http://www.ls1speed.com/catagory.cfm...in%20/%20Heads
SI3 224 224 .581 .581 114

heads,
http://www.ls1speed.com/catagory.cfm...in%20/%20Heads
11011112 Dart 205cc Assembled Pro 1 Head 62cc Chamber [each] $809.99 ea

if youre car is an automatic, a stall converter thats about 3000 rpm will be needed so you can take full advantage of the cam. youll also need a shift kit and trans cooler.
with the cam, youll need new springs, hardened pushrods, retainers and an ls2 timing chain.
an ls6 intake also would be a good idea also.
everything above will also need dyno tuning.

[blackls1ta]

Hello All

I would like to get above 400RWHP, right now I have a stock WS6 Trans Am w/ 3" Exhaust. This is what I am considering...

AFR SLP Cylinder Heads

Specs:

Intake flow up to 304 CFM at .500 lift, 320 CFM at .600 lift @ 28” of H2O.
Exhaust flow up to 250 CFM at .600 lift @ 28” of H2O (using 1-7/8 inch exhaust pipe).

225cc heads with 65cc combustion chamber.

CNC ported intake and exhaust ports, and combustion chambers.

2.080 intake, 1.600 exhaust standard length valves.

3-angle radiused valve job.

2.080 intake, 1.600 exhaust valves.

7° titanium retainers and valve locks.

1.290 inch double springs, 135 lbs seat, .600 inch maximum lift.

Emissions-legal CARB EO #D250-4.

Fully assembled, ready to bolt-on.

& a Matched .590”/236º int. 590”/236º exh. camshaft.

Int Valve Lift: 590"
Exhaust Valve Lift: 590"
Duration @ .050 is 236 Degrees
Centerline - 112º
Lobe Separation - 112º

SLP states that this Head & Cam combo will produce 525RWHP.
What do you think?

thats at the crank not wheels read it closer