Wiseco, 107″ to 124″ big bore piston conversion kit

Used with 577193 4.25″ big bore cylinders and stock 107″ (3.937″) stroke. Flywheel re-balancing is not required. Includes pistons; piston rings; wristpins and wristpin keepers / retaining rings. Note: See 577193 for required 4.25″ big bore cylinder set. Note: See 576556 for required Wiseco 4.25″ bore gasket set. Note: See 701087 for replacement piston ring set only