Spring Kit, Lightweight Racing, 0.630" Lift, HD®, M8™ (& CVO’s*) 2017-2024

*2023-2024 CVO’s check valve lift to determine compatibility with KPMI® spring kits

The new KPMI® Lightweight Racing Spring Kits for the Milwaukee-8, utilize a lightweight retainer, a heavy duty 9° keeper and a dual spring system with increased pressures and rates. These factors are designed to maximize valvetrain control when paired with top performance applications running larger valves, high lift cams and increased RPM’s. 

IMPORTANT NOTE:
Shortened Guides: the system must be run with KPMI’s new shortened Milwaukee-8 valves guides, or with modified stock guides (see installation instructions for more details)