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head question

This is a discussion on head question within the General Help forums, part of the LSx Technical Help Section category; is it true or false that you can add 40 horse to the rear wheels by swapping heads from a ...

  1. #1
    Junior Member
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    black
    1998 ta

    head question

    is it true or false that you can add 40 horse to the rear wheels by swapping heads from a 5.3 ls engine on to a 5.7 ls1? Got a line on some 5.3 heads at a good deal if it really helps. info and insite please

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    Not so much, i wouldnt waste my time with the head swap, your better off pulling your stock heads and having them cleaned up.
    J
    2001 SS, Its not the car its the Driver that matters....

  3. #3
    Member c5z28's Avatar
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    On your ass flashing
    my highbeams

    Just throwing this out there the 5.3's need bigger valves and a port/mill to outflow what you have.

  4. #4
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    black
    1998 ta

    thanks thought the guy was full of it when he told me

  5. #5
    Member NoscamaroSS's Avatar
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    NBM
    2002 Camaro

    Unless they're the stage 2.5 5.3's from Texas speed then he's full of it.
    02 Camaro
    PRC Stg 2.5 5.3's, Futral F14, PP Typhoon intake, True duals, Performabuilt tranny, & 3500 convertor, HSW plate kit.
    *Old Time* 10.90@ 125mph

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