Power Pack - 129ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Black Pushrod Tubes. Fits Milwaukee-Eight 2017-2024 with 107ci Oil Cooled Engine - S&S Speedo 4.5" Tank Mt '36-03 Cable * Keep an eye on

* Keep an eye on your engine with this way-cool part

* Legend’s touring specific spring rates produce superior ride quality & performance

* Includes a reducer sleeve to suit from 1″ axle to 3/4″ axle

The latest from the S&S development team is a 590 that’s designed specifically for use with monster bores

Power Pack - 129ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Black Pushrod Tubes. Fits Milwaukee-Eight 2017-2024 with 107ci Oil Cooled Engine - S&S Speedo 4.5" Tank Mt '36-03 Cable * Keep an eye onFeatures & Benefits: * 107ci to 129ci Big Bore Kit (4. 320 Bore) * Fits Oil Cooled Models. * Will not fit FLH24up * Chain Drive Cam & Forged Pistons with 11. 1 Compression Ratio * Wrinkle Black Finish with Highlighted Cylinder Fins. * Bolt On Kit, No Case Machining Required. * Includes Oil Pump & Cam Plate. * Includes Quickee Pushrods with BLACK Pushrod Tubes * Includes S&S Premium Tappets * Includes Tappet Cuffs * Includes S&S 550 Chain Drive Cam *