Big Block Chevrolet Stroker Crankshaft 4.750 inch Stroke ; 4340 forged steel; Main journal size standard bbc; Rod journal standard bbc 2.200; for use with minimum rod length of 6.600; 8 counterweight; Flange standard 6 Bolt Chevy; Bob weight 2250 grams. Molnar 454-4750DC8F-660
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