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CP Performance Boaters Shopping and Product Info Guide
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Big Block Chevy Crankshafts

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D/S Series Big Block Crankshaft
b/b crankshaft

Center main bearing counterweights are standard on all big block Chevy D/S crankshafts. Counterweights are cammed for a 6.535" rod on 4.250" stroke shaft while 4.000" stroke shafts are cut for 6.385" rod length. Dual woodruff keyways are located in the stock GM damper and gear fit positions.

For improved throttle response and reduced bearing loads, number 1 and 4 rod journals are lightening drilled. All journals are ground with Callies .125" Tru-form fillet radii as a Standard These crankshafts feature the very latest technology at an affordable price.

Part No. Description
670-454400 4.000 Stroke B/B Chevy Crankshaft
670-454425 4.250 Stroke B/B Chevy Crankshaft