Scat SB Ford 4340 Forged Steel Crank - 3.400" Stroke Centerlink These Holley products are QS9000

These Holley products are QS9000 certified and made in the USA

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Scat SB Ford 4340 Forged Steel Crank - 3.400" Stroke Centerlink These Holley products are QS90004340 FORGED STANDARD WEIGHT. This is our standard weight forged crankshaft. Designed for street or race engines with substantial increased horsepower. Straight shot and chamfered oil holes Nitride hardened for superior wear resistance Lightening holes in all rod throws . 125" radius on all journals Precision ground, heat treated, shot peened, inspected and micropolished in the U. S. A. 4340 forged material for superior strength Scat started out as a