Manley 191858NB Crankshafts - Chrysler 5.7L/ 6.4L Modern 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

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

These cranks are not balanced and have non-drilled counterweights

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