Hot Rods Heavy-duty Crankshaft

Heavy Duty (04-05) (+1.4mm stroke) makes engine true 450cc. Heavy Duty (06-08) standard stroke. Uses stock piston. Bolt in and go! When using Cylinder Works #21001-K01 makes engine 478cc. Does not fit fuel injected R or X models.

• Connecting Rod Side Clearance: 0.2-0.55mm
• Engine Type: 4-Cycle
• Final Displacement: 450cc
• Heavy Duty: TRUE
• Increased Engine Stroke: 1.400mm
• Stroke: 63.400mm
• Type: Stroker