Feuling Valve Springs

10 products — part of all Valve Springs

Feuling valve springs for Harley-Davidson are engineered to work in tandem with Feuling's cam profiles and tappet specifications — a designed system rather than components from competing manufacturers. Spring rates are calculated for the installed height, coil bind clearance, and retainer geometry of each supported Harley-Davidson engine generation: springs calibrated for a Shovelhead head would fail in a Milwaukee-Eight cylinder. Feuling cover the full modern range — Evolution Big Twin through 1999, Twin Cam 1999-2017, XL Sportster 1986-2022, and Milwaukee-Eight 2017 to current — with both standard-replacement and higher-than-stock-lift cam variants. The Screamin' Eagle beehive spring compatibility notes are particularly useful for CVO and SE tuning applications. Iron City Motorcycles stocks Feuling valve springs for the Harley-Davidson build that needs the complete valvetrain engineered together rather than assembled from unrelated parts. Browse the full Feuling Valve Springs range below.