S&S CYCLE Easy Start Camshaft Kit HP103 Chain Drive for Twin Cam '99-'06 (Excluding '06 Dyna) – Part Number 330-0445

Camshaft Kit - Easy Start - HP103 Chain Drive - Twin Cam '99-'06 (except '06 Dyna)

The S&S CYCLE HP103 Easy Start Camshaft Kit offers a reliable solution for smoother engine startups and enhanced high RPM performance. Designed specifically for Twin Cam engines from 1999 to 2006, excluding the '06 Dyna models, this kit features bolt-in cams that reduce initial crank compression, facilitating easier starts. Once the engine reaches higher RPMs, the centrifugal retraction of the compression release lobe allows the engine to operate with full compression, ensuring no loss of power or performance. Made in the USA, these camshafts include all necessary hardware such as gear cover gasket, bearings, retaining ring, O-ring, threat lock, and instructions for straightforward installation. The kit is optimized for engines with stock 9.7:1 compression ratios up to 10.5:1, delivering increased power in the high RPM range of 3000 to 6000 RPM. It performs well with stock, unported heads but is also highly compatible with S&S CNC ported heads for those seeking further performance gains. Prior to installation, the installer must verify key clearances, including coil bind, valve-to-valve, and valve-to-piston, to ensure optimal operation and longevity. This camshaft kit is an excellent choice for riders aiming to improve startup ease and high RPM power without sacrificing engine reliability or requiring extensive modifications.

Features:

• Engine start assistance by reducing initial crank compression for easier startup.

• Allows normal engine operation with full compression once engine RPM increases.

• Designed as bolt-in replacement for Twin Cam engines from 1999 to 2006 (excluding '06 Dyna).

• Optimized for engines with stock 9.7:1 to 10.5:1 compression ratios.

• Provides increased power output in the high RPM range of 3000 to 6000 RPM.

• Includes camshafts, gear cover gasket, bearings, retaining ring, O-ring, threat lock, and installation instructions.

• Made in the USA with high-quality materials and precision manufacturing.

• Compatible with stock or CNC ported heads for customizable performance.

• Requires checking coil bind, valve-to-valve, and valve-to-piston clearances prior to installation.