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The S&S Cycle MR103 Chain Drive Camshaft Kit (Part Number 330-0470) is engineered to enhance performance for Twin Cam engines from 2007 to 2017 and Dyna models from 2006. Designed for bolt-in installation, this camshaft is compatible with stock 8.7:1 compression ratios up to 10.5:1, making it a versatile upgrade for riders seeking increased power and torque. It works seamlessly with stock, un-ported heads but offers significant performance gains when paired with S&S CNC ported heads. This camshaft delivers improved power across a broad RPM range, with optimal results between 2,500 and 5,500 RPM, ensuring reliable performance during both daily riding and spirited cruising. Crafted in the USA, the camshaft embodies quality manufacturing standards and durability. Proper installation requires a hydraulic press and professional tools, as well as an inspection of coil bind, valve-to-valve, and valve-to-piston clearances. S&S recommends using adjustable pushrod covers to facilitate installation, and it is essential to replace camshaft bearings and gaskets to ensure optimal operation. This kit provides a straightforward upgrade path for riders looking to boost engine responsiveness and overall performance.
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