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S&S Cycle 330-0470 MR103 Chain Drive Camshaft Kit for 103-Inch Engines, Twin Cam 2007-2017 and Dyna 2006
Regular price $399.95 USD
Camshaft Kit - MR103 Chain Drive - Twin Cam '07-'17 | Dyna '06 Upgrade the performance of compatible Harley-Davidson 103-inch engines with...
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Camshaft Kit - MR103 Chain Drive - Twin Cam '07-'17 | Dyna '06
Upgrade the performance of compatible Harley-Davidson 103-inch engines with the S&S Cycle 330-0470 MR103 Chain Drive Camshaft Kit. This bolt-in camshaft is designed for engines using the stock 8.7:1 compression ratio through applications with compression ratios up to 10.5:1. It delivers stronger power throughout the usable RPM range, with particularly effective performance from approximately 2,500 to 5,500 RPM. The kit is intended for Twin Cam models from 2007 through 2017 and Dyna models from 2006, providing a performance-focused solution for riders seeking improved engine response without extensive cylinder head modifications.
This camshaft works with stock, un-ported cylinder heads and is also well suited for use with S&S CNC-ported heads. Its MR103 profile is engineered to support enhanced performance across a broad operating range while maintaining compatibility with the specified engine configurations. S&S Cycle manufactures this camshaft in the USA, reflecting the brand’s focus on performance components for Harley-Davidson applications. Always verify vehicle and engine compatibility before installation to ensure the camshaft matches the intended build and drivetrain configuration.
Professional installation is required. The installer must check coil bind, valve-to-valve clearance, and valve-to-piston clearance before operating the engine. A hydraulic press and other professional-level tools are necessary for proper installation. S&S Cycle recommends using adjustable pushrods and pushrod covers with this camshaft. Camshaft bearings and gaskets must be replaced when installing new camshafts. Follow the manufacturer’s installation procedures and confirm all clearances, related components, and timing requirements during assembly for reliable operation.
Features:
- Application: Bolt-in camshaft kit for 103-inch engines with stock 8.7:1 compression through 10.5:1 compression ratios
- Fitment: Designed for Harley-Davidson Twin Cam models from 2007 through 2017 and Dyna models from 2006
- Drive Type: MR103 chain drive camshaft configuration
- Cylinder Heads: Compatible with stock, un-ported heads and well suited for S&S CNC-ported heads
- Performance: Produces stronger power across the RPM range, with best results from approximately 2,500 to 5,500 RPM
- Construction: Made in the USA by S&S Cycle
- Installation: Requires professional-level tools, including a hydraulic press, and clearance checks for coil bind, valve-to-valve, and valve-to-piston conditions
- Recommendations: Use adjustable pushrods and pushrod covers; replace camshaft bearings and gaskets during installation
