+4mm Stroker Crankshaft with +5mm longer rods for Yamaha YFZ350 Banshee models increases engine displacement to up to 403cc. This crankshaft requires Vertex Long Rod pistons and the G093 gasket kit when used with OEM cylinder heads.

Features:

• +4mm stroker design for increased displacement.
• +5mm longer connecting rods.
• Produces up to 403cc engine capacity.
• Requires Vertex Long Rod pistons and G093 gasket kit for compatibility with OEM cylinder heads.

Cross-Reference OEM Part Numbers:

• Yamaha: 29L-11400-30-00
• Yamaha: 29L-11409-30-00
• Yamaha: 29L-11412-00-00
• Yamaha: 29L-11442-10-00

Part Number: 4111