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Valve train noise?

This is a discussion on Valve train noise? within the Internal Engine forums, part of the LSx Technical Help Section category; I just built my 402 stroker. I put a fast 90mm intake and tb. the cam is .598 lift with ...

  1. #1
    Member sscrazy's Avatar
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    00 camaro ss

    Valve train noise?

    I just built my 402 stroker. I put a fast 90mm intake and tb. the cam is .598 lift with ported and polished heads. Stock rockers and lifters. We fired it up for the first time saturday, and there is a lot of valvetrain noise. It was louder at first but then in quieted down a bit. Does anyone know if this is normal? Im thinking that because of the lift that there will be considerably more pushrod to rocker "ticking"


    Like i said, it does not sound fatal, just different. Thanks.
    00 ss camaro, 6.0 liter iron block, 4" callies crank, 4" Mahle pistons, Howards rods, Comp cam .598/.598, ported polished heads, Fast 90mm intake and tb flp headers and y pipe, lingenfelter muffler and tips, Maf, injectors, frame connectors.

  2. #2
    member since may 2000 nhraformula's Avatar
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    2000 nhra edition formula

    mine got louder after the cam and new springs also, its normal.
    the sewing machine effect
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  3. #3
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    I believe some noise is common as you said do to lift.

  4. #4
    ORNGP33L 1BADDLS1's Avatar
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    Hugger Orange
    1999 Camaro Z-28

    minimal noise is normal as stated...
    did you double check pushrod length too? (it would only enhance the sewing machine effect, not detrimental but just wondering)


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