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CAL-S4O-14K-MB PART NUMBER
S4O-14K-MB Callies Magnum Billet Crankshaft SB Chevy 4.000 BB Post$4,062.00Small Block Chevy / Spread Bore 4.500" with Big Block Post, 4.000 Stroke, 350 Main, 2.000 Rod Journal, 2 Piece Rear Main Seal, 4340 Forged Steel.
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CAL-SAM11K-MB PART NUMBER
SAM-11K-MB Callies Magnum Billet Crankshaft SB Chevy 3.875 - 5.850 Rod$4,653.00Small Block Chevy, 3.875 Stroke, 350 Main, 2.100 Rod Journal, 2 Piece Rear Main Seal, 4340 Forged Steel, Billet, 5.850 or longer rod
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