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, PAC Racing, Single, 1.500 in. Outside Diameter, 376 lbs./in. Rate, 1.115 in. Coil Bind, Each

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MANLEY Valve Spring Retainer, Titanium, Super 7 Degree, 1.620 in. OD, Double, Set of 16

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MANLEY Valve Spring Retainer, Steel, 7 Degree, 1.311 in. OD, Set of 16

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MANLEY Valve Spring and Retainer Kit, Nex Tek, 1.640 in. Outside Diameter, 647 lbs./in. Spring Rate, Kit

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MANLEY Valve Spring, NexTek, Drag Race, 1.580 in. OD, 535 lbs./in. Rate, 1.170 in. Coil Bind Height, Dual, Set of 16

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MANLEY Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 7 Degree Lock, 1.311 in. Spring O.D, Kit

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