MANLEY "PRO SERIES" 4340 Forged Crankshaft [Reluctor Wheel 58 | Stroke 4.050" | Bobweight (grams) 1730 | Total Weight (lbs.) 49-51] (2009-2012 CHRYSLER 5.7L HEMI & 2011-2012 6.4L HEMI)

Manley Performance "PRO SERIES" stroker crankshaft designed for the 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. The counterweights are profiled for 6.125" length connecting rods. All crankshafts are shipped with either a 32 tooth or 58 tooth reluctor wheel installed.

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

The stock timing crank gear may need to be chamfered to clear the larger radius on the snout of the crankshaft

All 2012 and earlier 58 tooth reluctor wheels have a tooth width of .170"
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.

Manley crankshafts are not intended for use with highly boosted roots style cog belt superchargers

When installing these crankshafts in a VVT engine, you also need to order a crankshaft gear spacer part number 42000.