floater piston pin clearance?
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floater piston pin clearance?

  1. #1
    Senior Member repoman's Avatar
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    Default floater piston pin clearance?

    what should the pin to rod clearance be. i just bought a set of eagles and srp pistons and a few of the pins are real tight in the rods.

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    steelcomp was here
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    .0012-.0015 depending on the application.
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    Bostick Racing Engines six-oh-nine's Avatar
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    Quote Originally Posted by steelcomp View Post
    .0012-.0015 depending on the application.
    That much float in the rods? Dang.

    I've had good luck with about .0003-.0005 in the rods... unless it's gonna be dry sump or pressure fed pins... but that's a different story.
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    Senior Member repoman's Avatar
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    Quote Originally Posted by steelcomp View Post
    .0012-.0015 depending on the application.
    probably should have gave a little more info. it's a blown 496 with 12 lbs of boost.

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    steelcomp was here
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    Quote Originally Posted by repoman View Post
    probably should have gave a little more info. it's a blown 496 with 12 lbs of boost.
    .0012-.0015
    I wouldn't ever go over .0015, and you can run under .0012 if you want, but not below .0010. IMO .0010 - .0012 is ideal. Steel rod, bronze bushing, standard pin.
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    Senior Member repoman's Avatar
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    thanks for the info. I appreciate it.

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    steelcomp, if .0012-.0015 is the recommended assembled clearence, what is the operating temperature clearence? i`m guessing the rod and pin expand at the same rate but again, i`m just guessing.

  10. #8
    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by steelcomp View Post
    .0012-.0015
    I wouldn't ever go over .0015, and you can run under .0012 if you want, but not below .0010. IMO .0010 - .0012 is ideal. Steel rod, bronze bushing, standard pin.
    I set mine to .0009, mahle recommended .0008 to .001. Why so much extra in this case than what they told me? Is it because it's blown? Just curious.

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