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Scat Forged 4340 Steel Crankshaft, Chevrolet SB 454 Main, 2 piece Rear Main Seal
These forged high tensile chromoly crankshafts are designed for street or race engines with substantial increased power. Features include straight shot oiling, chamfered oil holes, nitride hardened, lightening holes in all rod throws, and .125" radius on all journals. Requires narrowed bearings.
•Straight shot and chamfered oil holes
•Nitride hardened for superior wear resistance
•Lightening holes in all rod throws
•Precision ground, heat treated and shot peened
Part Type: Crankshaft
Application: Chevrolet Big Block
Crankshaft Material: 4340 Forged Steel
Nitrided: Yes
Rear Main Seal Style: 2 piece
Engine Main Bearing Type: 454 Main
Stroke: 4.250"
Rod Length: 6.385" and up
Rod Journal Diameter: 2.200"
Crankshaft Snout Size: Standard
Engine Balance: Internal
Lightening Holes In Rod Throws: Yes
Rod Bearings Included: No
Requires Narrow Bearings: Yes
Main Bearings Included: No
Manufacturer: Scat
Manufacturer's Part Number: 4-454-4250-6385, 445425
Weight: 70 lbs.
Warranty: Sold without warranty, expressed or implied
Quantity: Sold as Each
*Note: Oversize shipping charges apply
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