Feuling Parts – High-Load BeeHive® Valve Spring Kit (Manufacturer part number: 1201). A complete high-performance valve spring kit designed for Vintage/Classic and Touring Harley engine builds. Engineered to enhance valve responsiveness and tolerate high-lift cams while remaining a direct replacement with no machining of the rocker box for many applications.
Technical points and design:
- BeeHive® springs made from oval-section conical wire, nitrided heat treatment, shot peening, and Nano Peen™ polishing for increased fatigue resistance.
- Lightweight Ti-17 alloy upper spring cups, micro-polished (10°) to limit wear; machined chromoly spring seats heat treated.
- Compatibility: up to 0.574" lift for Big Twin '84-'04 and XL '86-'03, up to 0.700" for Twin Cam '05-'17 (larger camshafts may require machining of the guides).
- Track and bench tested; made in the USA.
- Important: install springs at the correct open height according to maximum lift and open height specification.
Seat loads / installation heights:
- 170 lb at 1.935" (0.720" lift)
- 185 lb at 1.900" (0.685" lift)
- 200 lb at 1.845" (0.630" lift)
- 208 lb at 1.819" (0.604" lift)
- 215 lb at 1.800" (0.585" lift)
- 217 lb at 1.789" (0.574" lift)
- 415 lb at 1.215" open height — maximum compression at 1.125"
The kit includes: 4x springs, 4x Viton® seals, 4x upper cups, 4x lower cups, 4x flat washers, and 4x half keys (8 halves).
Notable compatibility: Harley-Davidson FXSE, FLTRUSE2, FLHXSE CVO (2016–2017 models). For clean engine builds, reliability, and quicker revs.