Manley Professional valve springs are constructed from silicon material for oval track racing, or H-11 tool steel for drag racing. No matter what kind of racing you do, Manley has got you covered!

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MANLEY Valve Lock, Super 7 Degree Captiv Loc, Conventional, Steel, .3415 in. Stem, Super, Set of 16

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Trick Flow Valve Springs, PAC Racing, Beehive, 1.055 in./1.290 in. O.D, 313 lb./in. Rate, 1.140 in. Coil Bind, Set of 16

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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, Set of 16

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