129" Power Package - HPT496 - Chain Drive - Oil Cooled - Black w/o Highlights - 107" M8
Upgrade your Harley-Davidson M8 engine with the S&S Cycle 129" Power Package HPT496, designed to deliver increased performance without requiring case machining. This comprehensive bolt-on kit elevates your 107" M8 to 129" with a big bore 4.320" cylinder, paired with 11.0:1 forged pistons for enhanced power and durability. The kit features a high-performance HPT496 cam optimized for big bore applications, ensuring improved acceleration and torque across the RPM range. Additionally, the package includes an S&S oil pump and cam plate, along with passage plugs that are removable for easy servicing, along with debris screens in both scavenge pickups to safeguard the oil system from contaminants. The integrated magnet in the cam chest helps prevent debris from entering the oil pump, prolonging engine life and reliability.
Features:
- Big bore upgrade increases engine displacement from 107" to 129" without case machining
- 4.320" cylinder bore with 11.0:1 forged pistons for increased power
- Includes S&S oil pump and cam plate for optimized lubrication and performance
- Removable passage plugs for simplified servicing and maintenance
- Independent scavenge sections for flywheel cavity and cam chest improve oil flow and filtration
- Debris screens in both scavenge pickups protect the oil system from contaminants
- Magnet in cam chest prevents debris from entering the oil pump
- Enhanced oil flow capacity on both feed and scavenge sides for better lubrication
- Adjustable pressure relief valve allows fine-tuning of oil pressure with engine installed
- Quickee pushrods with pushrod tubes for reliable valve operation
- S&S premium tappets and hard anodized, black-coated billet aluminum tappet cuffs for durability
- S&S valve springs compatible with cam lifts up to 0.605"
- High-performance HPT496 cam designed specifically for big bore applications
- MLS multi-layered steel head gasket ensures a strong seal and reliability
- Includes 129" cam cover badge for a finished look
- Made in the USA with retained stock engine height and compatibility with stock crankcases
- Works with stock and S&S roller rocker arms, maintaining original engine serial numbers
- Compatible with stock valve springs, including both first and second-generation port designs
US Dollars
