S&S Valve Springs

9 products — part of all Valve Springs

S&S valve springs for Harley-Davidson are engineered for the high-lift cam profiles in the S&S catalogue — the spring rates, installed heights, and coil bind clearances calculated for each S&S cam specification rather than the OEM cams that came with the engine. The relationship between cam lift and valve spring rate is tightly coupled: a spring rate that works with a stock lift cam will float valves on an S&S high-performance grind at high rpm. S&S supply springs rated for their own cam specifications across Evolution Big Twin, Twin Cam, Milwaukee-Eight, and XL Sportster applications. Iron City Motorcycles stocks S&S valve springs for the Harley-Davidson performance build that specifies S&S cams and needs the spring rate matched to the lift profile selected. Browse the full S&S Valve Springs range below.