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S&S Cycle Power Pack 550C Oil Cooled Big Bore Kit for M8 Engines - 132" Performance Enhancement
Regular price $3,294.95 USD
Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8 The S&S Cycle Power...
Lease for as low as $/week
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Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
The S&S Cycle Power Pack 550C is a high-performance big bore kit designed specifically for M8 engines, transforming 114" and 117" models into powerful 132" machines without the need for case machining. Featuring a 4.32" bore and forged pistons with an 11.0:1 compression ratio, this kit delivers significant horsepower and torque gains. The updated profile and precision engineering ensure optimal fit and performance, making it an ideal upgrade for enthusiasts seeking maximum power from their Harley-Davidson M8 engines.
Built with quality and durability in mind, the kit includes an S&S oil pump and cam plate with a sleek blue anodized finish. Passage plugs are removable for easy servicing, and independent scavenge sections for the flywheel cavity and cam chest enhance oil flow and system reliability. Dual debris screens in both scavenge pickups and a magnet in the cam chest help prevent debris entry into the oil pump, ensuring clean oil circulation. Increased oil flow capacity on both feed and scavenge sides supports the demands of larger displacement engines. The adjustable pressure relief valve allows fine-tuning of oil pressure with the kit installed, providing additional customization for optimal engine operation.
The kit also features Quickee pushrods and premium S&S tappets, with black coated, hard-anodized billet aluminum tappet cuffs for durability. S&S 550 cams are designed for big bore applications and work seamlessly with valve springs up to 0.605" lift, utilizing high-performance conical single wire springs for reliable valve operation. Made in the USA, this kit is compatible with VVT models but is not intended for trike applications. Please note that intake and rocker cover gaskets are not included, so proper installation requires the use of existing or purchased gaskets. Overall, the S&S CYCLE Power Pack 550C offers a comprehensive upgrade for M8 engine enthusiasts aiming for increased power, improved oil circulation, and reliable performance in a sleek black granite finish with chrome pushrod tubes.
Features:
- Big bore upgrade from 114"/117" to 132" for M8 engines with no case machining required
- Includes forged pistons with 11.0:1 compression ratio for increased power
- Updated profile ensures optimal performance and fit
- 4.32" bore cylinders designed for durability and performance
- S&S oil pump and cam plate with blue anodized finish for enhanced durability
- Removable passage plugs facilitate easy servicing
- Independent scavenge sections improve oil flow and system reliability
- Debris screens in both scavenge pickups prevent contaminants from entering the oil system
- Magnet in cam chest helps reduce debris entry into the oil pump
- Increased oil flow capacity on feed and scavenge sides supports larger displacement engines
- Adjustable pressure relief valve allows fine-tuning of oil pressure
- Quickee pushrods and premium S&S tappets for reliable operation
- Black coated, hard-anodized billet aluminum tappet cuffs for durability
- S&S 550 cams optimized for big bore applications and valve springs up to 0.605" lift
- High-performance conical single wire spring design for valve stability
- Made in the USA with high-quality craftsmanship
- Compatible with VVT models; not suitable for trike models
- Note: Intake and rocker cover gaskets not included for installation
