S&S Cycle Twin Cam MR103 Easy Start Cam Kit - 330-0303

Upgrade your 103" engine with the S&S Cycle MR103 Easy Start Camshaft Kit. Experience improved power and smooth operation throughout the RPM range, thanks to its innovative design. This kit delivers enhanced performance and reliability for your motorcycle.

Description

The S&S Cycle MR103 Easy Start Camshaft Kit is engineered for bolt-in installation in 103" engines with stock 9.7:1 to 10.5:1 compression ratios. This camshaft kit features an easy start mechanism that reduces crank compression during startup. Once the engine reaches operating RPM, the compression release lobe retracts, allowing the engine to run at full compression without any performance loss. Expect increased power, especially between 2500 RPM and 5500 RPM. The MR103 camshafts work well with stock, un-ported heads and are an excellent match for S&S CNC ported heads. Made in the USA, this kit provides superior quality and performance, enhancing your motorcycle's overall riding experience. Maximize your engine's potential with the S&S Cycle MR103 Camshaft kit.

Features & highlights

• Easy start feature reduces cranking compression for effortless starts.
• Centrifugal compression release lobe retracts at operating RPM for full compression and performance.
• Optimized for 103" engines with 9.7:1 to 10.5:1 compression ratios.
• Delivers more power throughout the 2500-5500 RPM range.
• Works with stock and S&S CNC ported heads.
• Complete kit includes camshafts, gaskets, bearings, and hardware.
• Proudly made in the USA.

Technical specifications

• Brand: S&S Cycle
• Product Name: Camshaft Kit
• Type: Gear
• Application: Exhaust, Intake
• Grind: MR103
• Intake Open: 13°
• Intake Close: 33°
• Intake Duration: 226°
• Intake Lift: 0.585"
• Intake Lift at TDC: 0.172"
• Intake Lobe Centerline: 100°
• Exhaust Open: 50°
• Exhaust Close: 22°
• Exhaust Duration: 252°
• Exhaust Lift: 0.585"
• Exhaust Lift at TDC: 0.177"
• Exhaust Lobe Centerline: 104°

Important to know

Installer must check coil bind, valve-to-valve clearance, and valve-to-piston clearance during installation. This kit is not compatible with models equipped with OEM compression releases.