Hey Danny! Or anyone else with experience building 302s lol

Discussion in 'Engine & Performance' started by TLSF150, Oct 13, 2013.

  1. TLSF150

    TLSF150 Full Access Member

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    I need to put my gt40p heads together so I can install everything on the new fox..

    Question is.. I dont know how to install my valve springs.. I mean I know how to install them but I dont know what height they should be at or whether I need to shim them or not..

    Ive got Stock GT40P heads E303 cam and 1.72 Roller Rockers

    [​IMG]

    And heres the specs on the springs I got..

    [​IMG]

    And these springs do have the staggered retainers for intake and exhaust

    [​IMG]

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  2. AKBray907

    AKBray907 SUPER *********.

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    I could explain it but this has pictures also an I'm a visual person so figured this would be easier

    COMP Cams® - Sorry...
     
  3. TLSF150

    TLSF150 Full Access Member

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    Wait but wouldnt putting a shim under the spring make the height taller??


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  4. TLSF150

    TLSF150 Full Access Member

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    Or after the shims are on you measure from the shim to the retainer?

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  5. AKBray907

    AKBray907 SUPER *********.

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    You're using the shims to get the springs to the Installed spring height which is 1.775" in your case, you'll need a special tool to accurately measure it but basically you'll measure and shim as needed to get to the specs, this will give the correct spring pressure and will help the springs live longer an function better. Comps website does theirs a little different but since you already have what your specs should be just measure and then if off use shims to compensate for the differences
     

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