Description

S&S Cycle 128″ Power Package w/ CHAIN Drive Cams – Wrinkle Black w/ Highlighted Fins & Chrome Pushrod tubes

For 2017+ Harley Touring Models with 114″ or 117″ Twin-Cooled M8 (Water & Oil Cooled)

The 128″ Power Package is the ideal combination of performance and savings to transform your 114″ & 117″ Twin-Cooled M8 without breaking the bank.

Features:

• Includes all gaskets, bearings, and hardware required for installation.
• MADE IN USA

Big Bore Kit:

• 114″ & 117″ to 128″ Big Bore Kit for Stock Stroke Flywheel.
• Winkle Black Finish with Fin Highlighting
• Bolt on kit meaning no case machining required.
• 4.250″ bore Cylinders
• Forged Pistons
• 11:1 Compression Ratio

Oil Pump/Cam Plate:

• Precision Machined from Billet Aluminum
• Blue Anodized Finish
• Passage Plugs Removable for servicing
• Independent Scavenge Sections for Flywheel Cavity and Cam Chest
• Debris Screens in both scavenge pickups
• Magnet in Cam Chest to help to stop debris from entering oil pump
• Increased Flow Capacity on both Feed and Scavenge side
• Adjustable Pressure Relief Valve is adjustable with unit installed in engine

Pushrods:

• Quickee Pushrods with Chrome Tubes

Tappets:

• S&S Precision Tappets

Tappet Cuffs:

• Hard Anodized Black Coating
• Billet Aluminum Construction
• Stronger than Stock Material eliminates Distortion
• Improve tappet stability in high lift and high rpm situations

Cams:

• S&S 550 Chain Drive Cams – Designed for Big Bore Applications

Valve Springs:

• Work well with cams up to .605 lift
• High Performance Conical Single Wire Spring

Fitment:

• For 2017+ Harley Touring Models with 114″ or 117″ Twin-Cooled M8 (Water & Oil Cooled)
  
• FITMENT NOTES:
• For Stock Stroke Flywheel
• S&S does not recommend compression ratios higher than 10:1 for Tri Glide or other three wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.