Power Products 4340 Forged Steel Crankshaft Chevrolet BB 454 Main Manufactured from select 4340 alloy steel forgings. Featuring large 1/8" radii on all journals and lightening holes in rod throws. Shot peened and Nitrided for long life and wear resistance. Oil holes radiused. Requires narrowed bearings. •Select 4340 Steel Alloy Forgings •Precision ground, heat treated and shot peened •Nitrided for long life and wear resistance •Large radius on all journals •Lightening holes in all rod throws
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: 4.750" Rod Length: 6.700" 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: Power Products Manufacturer's Part Number: 454347 Weight: Warranty: Sold without warranty, expressed or implied Quantity: Sold as Each
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