HOT RODS HEAVY-DUTY CRANKSHAFT YAMAHA 4073

HOT RODS HEAVY-DUTY CRANKSHAFT YAMAHA 4073 {"features":"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;","description":"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.","descSource":"p"}