
The Feuling Race Series® camshaft kit (manufacturer part number 1458) is designed for modifications on large air-cooled Harley engines intended for the Vintage/Classic and Touring categories. Designed and manufactured in the United States, this complete package includes the Reaper® camshaft, Racer Series hydraulic lifters with a total lift of 0.200", a gasket/o-ring kit for fitting Feuling HP+ 0.0165" or stock rocker arms, ARP fasteners for the cam/crankshaft, and the necessary installation kit.
Feuling emphasizes the importance of using monoblock rocker arms on 4-valve cylinder heads where a single rocker controls two springs: this unstable architecture justifies the monoblock solution to ensure maximum lift, limit vibrations in the valve train, and reduce issues with hydraulic lifters. The Race Series lifters benefit from a slower bleed rate, suitable for marked ramp profiles and reinforced springs, which mitigates the risk of valve float.
This kit is particularly suitable for builders and riders seeking a robust and high-revving setup based on 117/1923 cc (e.g., Harley models listed for compatibility). Serious installation and adjustments required by a professional to ensure reliability and load handling.