S&S 129" M8 POWER PACKAGE FOR 107" OIL COOLED MODELS

107" to 129" 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
• Available in Both Gear Drive & Chain Drive Variations
• Gear Drive Kits Provide Improved Cam Timing Accuracy
• Gear Drive Kits Include Outer Drive Gears

Valve Springs:

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

Cam Chain Tensioner:

• Comes with Chain Drive Kits
• Precision Machined from Billet Aluminum
• Thicker Shoe for Longer Wear
• Direct Chain Oiling
• Larger Piston for More Consistent Pressure
• Tighter Tolerances Improves Stability