Fitments
17-23 107" M8 models with 4.25" big bore cylinder kit
Part Description
Wiseco, 107" to 124" big bore piston conversion kit
Used with 4.25" big bore cylinders and stock 107" (3.937") stroke. Flywheel re-balancing is not required. Note: See 577193 for 4.25" big bore cylinder set. Note: See 576556 for Wiseco 4.25" bore gasket set.