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 Spring, NexTek, Drag Race, 1.650 in. OD, 635 lbs./in. Rate, 1.105 in. Coil Bind Height, Dual, Polished, Each

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