Valve springs compress and rebound hundreds of times a second. Make sure your next set of valve springs are built to last—and built to win! Trick Flow® by PAC Racing dual valve springs are specifically designed for cams with aggressive profiles, and are available with damper coils for extra spring surge prevention. PAC springs are CNC coiled from high tensile-strength, extra-durable Pacaloy chrome-silicon steel and double shot-peened beyond Aerospace Material Specifications (AMS) reliability standards.

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Trick Flow Valve Spring Shims, Steel, Hardened, 1.460 in. Outside Diameter, .060 in. Thick, Set of 16

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MANLEY Valve Spring Retainer, Titanium, 10 Degree, +.100 in, 1.500 in. OD, Double, Set of 16

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MANLEY Valve Spring Locator, Inside, Heat-Treated, Fits 1.255 in. OD. Spring, .577 in. ID, 1.24 in. OD, .035 in. Thick, Black, Set of 16

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Trick Flow Valve Spring Retainers, Chromoly, 1.25 in. Diameter, 7-Degree, Single spring +.050, Set of 16

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Crow Cams Dual Valve Springs

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MANLEY Valve Spring, NexTek, Drag Race, 1.311 in. OD, 353 lbs./in. Rate, 1.100 in. Coil Bind Height, Single, Each

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