Power Pack - 129ci Big Bore Kit with Chain Drive 550 Camshaft, Highlighted Fins & Black Pushrod Tubes. Fits Milwaukee-Eight 2017up with 107ci Oil Cooled Engine.

Features & Benefits:-

* 107ci to 129ci Big Bore Kit (4.320" Bore)

* Fits Oil Cooled Models.

* 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 Ca

* Incl udes S&S Valve Springs

* Includes S&S Cam Chain Tensioner

Tech Tips:-

* Must Purchase S&S M8 Head Bolts # SS900-1006 or ARP Head Bolt Kit FE-3007.

* Use Care during assembly to avoid damage to Cylinder Spigots.

* Ring Gap & Piston to Cylinder Clearance should be checked.

* Rev Limit should be set at 3500 rpm for Initial Run In Period.

* Re-Calibration of Ignition Timing & Fuel Mixture is required.

People who Buy this Product also Purchase:-

* Hi-Strength Rocker Stud & Nut Kit # SS900-1013 or FE-3037.

* ARP Chrome Moly Hi-Performance Cylinder Stud Kit FE-3027.

Proudly Made in the USA by S&S Cycle !

MFR PART No: 310-1225

ROLLIES PART No: SS310-1225