Hemi 440 Steel Billet Crankshaft 4.100 Stroke Switch out your weak and

Switch out your weak and thin factory retainer plates with Speedmaster heavy-duty bearing retainer plates and make your ride a lot safer

block for added strength

This kit features a simple V-belt to serpentine pulley conversion while retaining your existing brackets

and then nitrided for durability

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

Hemi 440 Steel Billet Crankshaft 4.100 Stroke Switch out your weak andSpeedmaster 4340 Billet Steel crankshafts are manufactured from high quality true billet round bar stock. Their performance, strength and horsepower capabilities are significantly outstanding compared to cast forged crankshafts. An engine with a 4340 billet steel crankshaft will rev faster and cleaner due to the different harmonics produced from the high grade material. Those crankshaft are x rayed and ultrasonically tested.