S&S 129" Power Pack Gear Drive Oil Cooled Kit for 107" Harley M8

Product Description

Turn your stock 107" into a monster of a 129" with S&S Power Package for Harley M8 motors. Kit is designed to fit Gear Drive / Oil Cooled Milwaukee Eight models Only. Choose Cylinder finish and pushrod tubes. Requires S&S Cycle Head Bolts for M8, part number 900-1006

Fits: Harley M8 Models (Oil Cooled)

Big Bore Kit:

• Available With or Without Fin Highlighting
• Bolt-On Kit — No Case Machining Required
• 4.320" Bore
• Forged Pistons
• 11.1 Compression Ratio

Oil Pump/Cam Plate:

• Precision Machined from Billet Aluminum
• Independent Scavenge Sections for Flywheel Cavity & Cam Chest
• Debris Screens in Both Scavenge Pickups
• Magnet in Cam Chest to Help to Stop Debris from Entering Oil Pump
• 44% Flow Increase on Supply Side & 58% Flow Increase on Scavenge Side
• Pressure Relief Valve is Adjustable with Unit Installed in Engine
• Kits Now Include Updated Oil Pump with Groove for Optional OEM Oil Seal

Pushrods:

• Quickee Pushrods
• Chrome or Black Pushrod Tubes Available

Tappets:

• Hand Assembled to Exacting Tolerances
• Reduced Valve Train Noise from Start Up to Shut Down
• Close Tolerances for Low Leak Down Rates
• Fast Pump Up and Superior High RPM Performance

Tappet Cuffs:

• Hard Anodized Black Coating
• Billet Aluminum Construction
• Improve Tappet Stability in High Lift & High RPM Situations

Cam:

• S&S 550 Cam- Designed for Big Bore Applications
• Gear Drive Applications

Valve Springs:

• High Performance Conical Single Wire Spring
• Includes Top Collars, Keepers, & Valve Seals/Bottom Collars

Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.         

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.