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  1. Vintage Sleds and Parts
    Hello out there. The family has several Massey and Scorpion sleds from the late 70's. We burned a piston on the Scorpion Sting 440. After teardown and clean up we discovered that dad bored out the cylinders +28 years ago as the pistons are 0.040" over. Wiseco part number was 2070P4 for this...
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