S&S Cycle MR103 Gear Drive Camshaft Kit for Twin Cam Engines (’99-’06)

Camshaft Kit - MR103 Gear Drive - Twin Cam '99-'06 (except '06 Dyna)

Upgrade your Twin Cam engine with the S&S Cycle MR103 gear drive camshaft kit, designed for models from 1999 to 2006 excluding the ’06 Dyna. This bolt-in camshaft delivers improved power and performance across a broad RPM range, making it ideal for riders seeking enhanced throttle response and acceleration. The kit is compatible with stock 8.7:1 compression ratios up to 10.5:1, and works well with stock, un-ported heads, as well as S&S CNC ported heads for even better airflow and power gains. This camshaft is engineered to optimize engine performance, especially between 2,500 and 5,500 RPM, providing a noticeable increase in power and torque throughout your ride. The robust design ensures reliability and durability, backed by the American manufacturing quality that S&S Cycle is known for. Proper installation requires a hydraulic press and professional tools, and it’s recommended to use adjustable pushrods and covers for precise setup. When installing the new camshaft, be sure to replace camshaft bearings and gaskets to maintain optimal engine function and longevity. The kit includes all necessary components for a comprehensive upgrade, providing a significant boost in performance for your Twin Cam engine. Whether you’re looking for increased acceleration, better throttle response, or improved overall engine efficiency, this camshaft kit is a reliable upgrade tailored for serious riders and custom builders seeking quality and performance from a trusted brand.

Features:

• Designed for Twin Cam engines from 1999 to 2006 (excluding ’06 Dyna)

• Bolt-in installation compatible with stock heads and un-ported S&S CNC heads

• Optimized for power gains across 2,500 to 5,500 RPM range

• Made in the USA with high-quality craftsmanship

• Requires professional installation with hydraulic press and tools

• Includes all necessary components for a complete upgrade

• Improves throttle response and overall engine performance

• Replaces camshaft bearings and gaskets during installation

• Works with a range of compression ratios from 8.7:1 up to 10.5:1