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Thread: rocker arm ratio

  1. #1
    Senior Member EXPERT BUILDER
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    rocker arm ratio

    is there anything i have to do differently to run a 1.6 ratio on a sbc instead of a 1.5 rario

  2. #2
    Senior Member RACING JUNKIE
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    just install them and the push rods... then turn it over by hand to check clearances to make sure your not bottoming out the valve/springs. might have to change push rod length pending on cam size
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  3. #3
    Senior Member EXPERT BUILDER
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    ok it gonna be a farily mild cam solid flat tappet 525/525 with the 1.5 ratio

  4. #4
    Senior Member EXPERT BUILDER
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    and is it worth the extra ratio it will be a 355 with 10:1 c comp 294s soild cam pro comp aluminum heads hurricane intake and a holley 750 looking to get 450 out of it
    comp cams cam quest said 500 hp with the combination and that cam

  5. #5
    Check the wipe of the rocker on the valve tip. You might need to alter the push rod length.


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