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Heads & Cam Kit

This is a discussion on Heads & Cam Kit within the Internal Engine forums, part of the LSx Technical Help Section category; ...

  1. #1
    Junior Member jpn8801's Avatar
    Join Date
    Aug 2007
    Location
    SoCal
    Posts
    58

    White
    2000 Trans Am WS.6

    Heads & Cam Kit

    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?

  2. #2
    member since may 2000 nhraformula's Avatar
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    Dec 2002
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    n/w chicago
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    6,933

    black
    2000 nhra edition formula

    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.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  3. #3
    Member blackls1ta's Avatar
    Join Date
    Mar 2007
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    kittanning,pa
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    516

    black
    2000 ws.6 m6

    Quote Originally Posted by jpn8801 View Post
    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

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