Fuller Hotrods 4111 Stroker Crankshaft Assembly Yamaha - 4mm 403cc

The Fuller Hotrods 4111 is a heavy-duty stroker crankshaft assembly designed to increase displacement and performance in Yamaha engines. This +4mm stroker crankshaft features +5mm longer connecting rods, producing up to 403cc of displacement—a significant boost over stock configuration.

Key Features:

• Complete drop-in stroker crankshaft assembly, factory assembled and trued
• +4mm stroke with +5mm longer connecting rods for increased displacement up to 403cc
• Includes proven Hot Rods connecting rods, top end bearings, and crankshaft webs
• No costly case machining, custom cam chains, or spacer plates required
• Ready for installation out of the box

Installation Requirements:

• Requires Vertex Long Rod pistons for proper fitment
• Requires G093 gasket kit when using OEM cylinder heads

This stroker crankshaft delivers enhanced performance and torque without the complexity and expense of extensive engine modifications, making it an ideal upgrade for Yamaha powersports enthusiasts seeking reliable displacement increases.