We are proud to offer the highest quality, longest lasting valve springs for your H-Series engine...Period. Valve control is one of the most important parts of making power and promoting long engine life. Too often springs are pushed beyond their functional limits and valves bounce out of control. We put these kits together after extensive testing and these are a must if you are racing competitvely, turning high rpm, and running huge camshafts. You can spend the money now and have a good spring that maintains valve control and lasts several race seasons, or buy cheap now and replace them a couple times a year...along with the other damage caused by out of control valves.
Drag Race Spring
We developed this single spring kit starting with a PSI Pro Stock Motorcycle spring with Max Life Treatment and our own custom seat and retainer. This is a lightweight package with plenty of room to run large camshafts beyond .650 lift. Package comes with springs, spring seats, and titanium retainers.
We came up with this spring specifically to go with our Pro H22 Camshafts. There simply is no other spring on the market suitable for high rpm that can handle a large camshaft.
Endurance Spring
Special order only.
100% MADE IN THE USA!
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