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Thread: What kind of numbers on this combo?

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  1. #1
    Join Date
    Mar 2013
    Location
    Edmonton, AB, Canada
    Posts
    133
    Hey thanks a lot I appreciate the input!

    I'll probably just get the stock heads ported.

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    There are a lot of opinions and variables. I'm just trying to spark ideas or issues you might encounter.

  3. #3
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    3,581
    wrong cam for LS3 heads

    ive used two of JFR cams for square ports

    218/224 570/575 112 the one combo made 1053 on 23 psi thru a Th400

    on 8 psi on mustang dyno combo made 530/640 thru th400

    JFR is stock48 on the boards
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    Here's a cam we did for a 6.0L, LS3 heads, turbo

    had the gm performance ls3 heads, now has trickflow heads.

    just to give you a baseline or idea.

    231/231 .598”/.598” 113LSA +4 adv

    one in my silver truck is a 235/235 , more lift.

    both made 4850hp on e85, broke the engine dyno; why more left in it, sneeking up on the tune

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