MK136 Black Edition Engine - 550G Gear Drive - Oil Cooled - Race Only - M8 Touring D604 Works well in all size

Works well in all size motors up to 10:1 compression

Big Sucker Air Cleaner Kit - Natural - Stage I

Silhouette Solo Seat - Smooth - Black - FLHR '97-'07

CNC machined from 6061-T6 aluminum

MK136 Black Edition Engine - 550G Gear Drive - Oil Cooled - Race Only - M8 Touring D604 Works well in all sizeMK136 Black Edition Engine 550G Gear Drive Oil Cooled Race Only M8 Touring Cylinder Heads: High flow cylinder heads with premium seats, guides, valves, springs, and seals =+1. 00 mm oversized intake and exhaust valves Valves are 0. 030" longer than stock for improved valvetrain geometry 0. 605" max lift valve spring 550G gear drive cam Enlarged cooling passage around the exhaust seats S&S exclusive breather boxes Crankcase: Patented dual spray piston