DougRippie.com | Comp Cams 921 Valve Spring kit

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Comp Cams 921 Valve Spring kit $640

The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams® has developed a process that creates the highest quality Race Valve Spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.

The 921 Springs are rated to .650 lift

Part # O.D. I.D. Seat Load Open Load Coil Bind Rate (Lbs./In.)
937 1.015 .731 54 @ 1.800 147 @ 1.200 1.100 156


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Comp Cams 921 Valve Spring kit $640