Hot Cams Valve Spring Kit For 01-05 Yamaha YFM660R Raptor

Description

The Hot Cams Valve Spring Kit is a high-performance upgrade designed for ATV/UTV applications, including compatibility with the 2021 Polaris General XP 1000 EPS Factory Custom Edition. Constructed from premium Japanese spring steel, this kit is engineered to handle the increased demands of higher performance camshafts. It includes valve springs, base washers, and retainers, ensuring a durable and reliable setup for enhanced engine performance. This kit is required for use with Stage 2 (P/N 560177) and Stage 3 (P/N 559451) cams, as well as other specific stroker Raptor cams.