Hot Rods 04-09/12-13 YFZ 450 Stroker Crankshaft

Premier performance and displacement increasing crankshafts that are sold complete and ready for installation with proven Hot Rods connecting rods, top end bearings and crankshaft webs.

• Most applications don’t require modifications and can be used with stock piston, unless noted
• Factory assembled, trued and balanced to OEM specifications
• Increases displacement, torque and horsepower
• High-quality DIN Class 9 or higher

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