S&S CYCLE 129" Power Pack - 550 Chain Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - 107" M8 310-1223C

129" Power Pack - 550 Chain Drive - Oil Cooled - Wrinkle Black w/Highlight Fins - 107" M8

Features

• Big-bore bolt-on kit increases 107" M8 to 129" with no case machining required
• 4.32" bore cylinders with 11.0:1 compression ratio forged pistons
• S&S oil pump/cam plate with blue anodized finish
• Passage plugs are removable for servicing
• Independent scavenge sections for flywheel cavity and cam chest
• Debris screen in both scavenge pickups
• Magnet in cam chest to help prevent debris from entering the oil pump
• Increased oil flow capacity on both the oil feed and scavenge side
• Adjustable pressure relief valve can be adjusted with the unit installed in the engine
• Quickee pushrods
• S&S premium tappets
• S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
• S&S 550 cams are designed for big bore applications
• S&S valve springs work with cams up to 0.605" lift
• High-performance conical single wire spring design
• All necessary gaskets, bearings and hardware for bolt on installation included
• Made in the USA
• Not for any Trike models.

Specifications

• Bore Size: 4.320"
• Cam Drive Type: Chain
• Color/Finish: Highlighted Fins
• Compression Ratio: 11.0:1
• Cooling System: Oil Cooled
• Displacement: 129"
• Features: Chrome Pushrod Tubes
• Model: Power Package
• Product Name: Performance Kit
• Riding Style: Street
• Stroke Length: 4-3/8"
• Type: Engine
• Units: Kit
• Country of Origin: US
• Package Dimensions: 27.25 L × 20.5 W × 12.5 H in
• Shipping Weight: 44.9 lb