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Make your own machine keys with heat treated 8630 alloy steel
Blue / Silver
Updated styling
with EZ Mount
ideal for low to medium HP applications
COMP Cams Low Tension Checking Springs (2 Pack) H771001M Make your own machine keysCOMP Cams Checking Springs are low tension and can be installed by hand in place of the valve springs. They simplify measuring piston to valve clearance and rocker ratio. They are sold in sets of two. Checking springs are essential for any engine project. Whether you're checking piston to valve clearance, rocker ratio, valve lift, degreeing a cam or measuring for pushrod length, checking springs are a necessity. The COMP Cams philosophy has never
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