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This Eagle forged 4340 steel crankshaft for Chevrolet 400 (5.700" stroke) is an internally balanced crank built for demanding applications. Features include a non-twist forging, .125" fillet radiuses—requiring chamfered or narrowed bearings—plus a nitrided surface and micropolished finish to enhance durability. It’s manufactured for high-strength use where reliability under stress is critical.
Eagle Chevy 400 Forged 4340 Stroke 5.700 Steel Crankshaft
