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  • Callies SAJ113CC Compstar Comet 4340 Crankshaft Small Block Chevy 383
    Callies SAJ113CC Compstar Comet 4340 Crankshaft Small Block Chevy 383
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    The Compstar Comet crankshafts from Callies are forged of 4340 steel and have had non-critical material removed to allow these cranks to weigh only 42 lbs. A light rotating assembly allows you to acclelrate faster off the corners. 

    Two piece rear main seal, 350 mains.  3.75" stroke.