Big Block GX and Clone Crankshaft - 66mm Stroke

Forged steel 66mm stroke replacement crankshaft for big block Honda GX390 and clone engines.

Rod journal diameter: 1.416"/35.966mm

Output diameter: 1"

Displacement:

• 88mm bore = 407cc
• 90mm bore = 420cc
• 92mm bore = 439cc
• 94mm bore = 458cc
• 95mm bore = 468cc