Manley Ford 351 Windsor Forged Crankshaft - 4.100in Stroke

Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications.

Additional Information

Manley Crankshaft, CRANK-4340 FORGE 4.100 STROKE

Part Type

Engine Crankshaft

• Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.
• Increase Displacement with a Stroker Crankshaft: These cranks feature either the stock 3.543 stroke or an increased stroke of 3.750 , turning your 4.6L into a 5.0L or larger depending on your bore.
• Lightweight Design, 4340 Material: Manufactured from forged 4340 material and featuring lightened rod journals for optimized engine performance. Counterweights are fully profiled to ensure precise balance and stability.
• Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.
• Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.

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Reference Information

Crankshafts, 1-piece Seal, Forged 4340 Steel, 4.100 in. Stroke, Internal Balance, Ford, Each

Manley Pro Series crankshafts can make your short block bulletproof. They feature forged 4340 construction and undergo a multi-step heat-treatment process and are then nitrided for added strength. The crankshafts are stress-relieved, shot-peened, and magnafluxed. Manley Pro Series crankshafts have micro-polished large .125 in. radius journals, gun-drilled mains, and lightened rod journals for weight reduction. The counterweights are fully profiled and they are designed for internal balancing.