129" High Performance Engine Kit for Harley Davidson M8

Converts an oil-cooled 107" M8 to a 129" M8 without machining the case
Large bore cylinders come with matching cam, cam plate and oil pump
Independent sweep sections for the flywheel cavity and camshaft housing
Magnet in the camshaft housing to help prevent debris from entering the oil pump
They feature high-performance S&S single-wire conical valve springs
The original engine serial numbers are retained.
The passage plugs are removable for maintenance.
Debris screen on both sweep collectors
MLS cylinder head gaskets (multi-layer steel)
Leva 550 combined performance
Works with the stock crankcase
Made in the USA
Kit includes cam plate, 550G camshaft kit, Quickee pushrod kit with chrome covers, tappet lifter guide, spring kit, big bore cylinder kit, oil-cooled oil pump, and hydraulic tappet set.
S&S CYCLE 310-1224