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.
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 reluctor wheels are attached with 4 fasteners.
Multi-step heat treatment process and nitrided for added strength to already strong forged 4340 material
Stroke: 4.050 in. - Rod Journal: 2.000 in. - Reluctor Wheel: 32 Tooth - Bobweight: 1770 grams
Manley Forged Pro Stroker Crank-Gen III Hemi-5.7L (2008 prior)/6.1L - SBC Jrnl
Micro polished large radius journals (narrow rod bearings required)
Gun drilled mains and lightened rod journals for weight reduction
Manley Chrysler 5.7L/ 6.1L Crankshaft - 4.050 Hemi 32T RELU
Manley Crankshaft, 4340 FORGE 4.050 STROKE - SBC Journal
Stress relieved, shot-peened and 100% magnafluxed
Dual keyed post for supercharger drive pulleys
CRANK-4340 FORGE 4.050 STROKE
Counterweights fully profiled
Engine Crankshaft
Crankshaft
