Butler Performance Inc. - Crankshafts

Engine Components- Internal - Crankshafts
Butler stock cast, forged, and billet crankshafts from industry leading brands such as Scat, Crower, Eagle, RPM, Ohio, and more. These cranks can be purchased individually or part of a custom rotating assembly.

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More About Crankshafts

This picture shows the only area that normally needs to be clearanced to put either a 4.000" 4.25" or 4.500" stroke crank in a Pontiac 400 block- although any new part should be installed and all clearances checked prior to final assembly because of factory production variances.