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Racer Series Crankshaft 13377


Product Description

Forged from the finest 4340 aircraft quality steel. Exclusive non-twist design allows for continuous granular flow, producing a higher cycle bending fatigue crankshaft. Specifications during manufacturing are of the highest standards. All radii in the rod and main journals are .140.

Roundness of each journal is within .0001 or less. Micro finishing of the journals are of grade 5 RMS or better. Crankshaft stroke is .001 maximum.

A plasma gas nitrite heat treatment is used, which gives a case depth of .015-.022. The #1 and #4 rod jour-nals are drilled to lighten and facilitate balancing.

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