Manley Performance Chrysler 5.7L/6.1L Hemi 4.050-inch Stroke Forged Crankshaft with 58 Tooth Reluctor Wheel

Manley Performance “PRO SERIES” stroker crankshaft designed for the Gen III small block HEMI engine. Manufactured from a premium 4340 steel forging, these cranks feature a 4.050” stroke which can turn your 5.7L into a 392 c.i. engine and your 6.1L/6.4L into a 426 c.i. engine. The Manley 4.050” stroke HEMI crankshaft features small block Chevy small journal (2.000") crank pin diameters and widths. This provides taller "side walls" on the crankshaft rod journals for better oil control and reduced windage. Counterweights are profiled for 6.125" connecting rods. Stroke: 4.050 in. - Rod Journal: 2.000 in. - Reluctor Wheel: 58 Tooth - Bobweight: 1730 grams When installing these crankshafts in a VVT engine, you also need to order a crankshaft gear spacer part number 42000 - All 2013 and later 58 tooth reluctor wheels have a tooth width of .130”, along with a dimple in the rear face of the wheel - All reluctor wheels are attached with 4 fasteners

• Multi-step heat treatment process and nitrided for added strength to already strong forged 4340 material
• Micro polished large radius journals (narrow rod bearings required)
• Gun drilled mains and lightened rod journals for weight reduction
• Stress relieved, shot-peened and 100% magnafluxed
• Dual keyed post for supercharger drive pulleys
• Counterweights fully profiled

Upgrade your HEMI engine with the Manley Performance PRO SERIES 4.050-inch stroke forged crankshaft, specifically designed for Gen III small block HEMI engines. Manufactured from high-quality 4340 steel forging, this crankshaft offers exceptional strength and durability. Its 4.050-inch stroke transforms a 5.7L engine into a 392 cubic inch displacement and a 6.1L or 6.4L engine into a 426 cubic inch displacement, providing increased power potential. The crank features small journal (2.000-inch diameter) crank pins with increased wall thickness for improved oil control and reduced windage, which enhances overall engine efficiency. The counterweights are profiled to accommodate 6.125-inch connecting rods, ensuring precise balancing and smooth operation.

Features:

• Manufactured from premium 4340 steel forging for added strength and durability

• s a 4.050-inch stroke for significant displacement increase

• Small journal crank pins (2.000-inch diameter) with taller side walls for better oil control

• Micro-polished large radius journals requiring narrow bearing sizes

• Gun drilled mains and lightened rod journals for weight reduction

• Stress relieved, shot-peened, and 100% magnafluxed for quality assurance

• Includes a 58-tooth reluctor wheel with a .130-inch tooth width and a dimple in the rear face

• Dual keyed post for supercharger drive pulleys for secure attachment

• Counterweights are fully profiled for optimal balancing and performance

• Designed for easy installation in VVT engines with optional crankshaft gear spacer (part number 42000)

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1