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.
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.
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.
Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.
Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.
Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.
Discontinued - Manley Crankshaft, CRANK-4340 FORGE 3.850 STROKE
Manley Ford 351 Cleveland Forged Crankshaft - 3.850 in. Stroke
Manley Ford 351 Cleveland Forged Crankshaft - 3.850in Stroke
Manley Crankshaft, CRANK-4340 FORGE 3.850 STROKE
Manley Crankshaft, 4340 FORGE 3.850 STROKE
CRANK-4340 FORGE 3.850 STROKE
Engine Crankshaft
Crankshaft
