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  1. #1
    Senior Member SnakePliscan's Avatar
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    Predator hemi piston in non hemi block ?

    Predator hemi piston in non hemi block, will the flat top from a hemi go in a earlyer block ?
    Aare they the same compression height? Pin size ? diameters ? ring widths ?etc...everything but the dish man!
    Anybody know?
    Iim hoping i can swap one in while i swap to a gx160 head.......
    Last edited by SnakePliscan; 10-08-2014 at 06:20 AM.

  2. #2
    ole4's Avatar
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    You can bore size is the same but compression height is shorter. Most use it with .020 longer arc rod. You need to check it before ordering rod.
    Ole

  3. #3
    Senior Member SnakePliscan's Avatar
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    hemi piston and rod

    Quote Originally Posted by ole4 View Post
    You can bore size is the same but compression height is shorter. Most use it with .020 longer arc rod. You need to check it before ordering rod.
    So that means the Hemi piston and rod will swap as an assembly.

  4. #4
    ole4's Avatar
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    Hemi rod is the same as the other preadtor rods so yes .
    Ole

  5. #5
    Senior Member SnakePliscan's Avatar
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    hemi flattop piston

    So the compression height is less than a dish piston, 0.020" apparantly. also the rings are thinner and the piston is 12 grams or so lighter.

    So if your going to a gx160 head, which is a big time quench head, your better off with the higher dish piston.

    Makes ya wonder if the only reason the hemi got a flattop is because it was cheaper to produce.

  6. #6
    ole4's Avatar
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    It works well if you are going to use the +.020 ARC billet rod. Othewrwise not so much. However anytime you reduce reciprocating weight it helps reduce vibration. So for that it would be a plus.
    Ole

 

 

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