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, 7 Degree Machined, Bead Loc, Steel, 5/16 in. Stem, Set of 16

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COMP Cams Valve Spring, Endurance, 1.560 in. OD, Dual, 2.050 in. Installed Height, Set of 16

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MANLEY Valve Lock, 10 Degree Machined, Bead Loc, PVC Titanium, +.050 .3415 in. Stem, Set of 8

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MANLEY Valve Spring Retainer, Steel, Super 7 Degree, H-13, 1.580/1.610 in. OD, Double, Each

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QA1 Shock Tuning Kit

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COMP Cams Valve Lock, Stamped, Hardened Steel, 7 Degree, 11/32 in. Valve Stem, 4 Groove, For Ford 351C, Pair

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