407Ci Ls Chevy Engine Callies Compstar Crankshaft
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Tony Mamo selected a Callies Compstar crankshaft featuring reduced diameter 2.00-inch rod journals instead of the factory 2.100-inch dimension. The smaller journal increases clearance with the longer stroke, and reduces bearing speed and frictional losses. Mamo says it is a "win-win." View Related Article
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