Dual Valve Spring Set, 551 Spring Rate CO943-16 Product:1.550" Outer OD, [email protected]" Seat Pressure, 1.160" Coil Bind They have a one-piece billet

They have a one-piece billet rail CNC machined from 6061-T6 to guarantee a precision flat surface for superior sealing

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Dual Valve Spring Set, 551 Spring Rate CO943-16 Product:1.550" Outer OD, [email protected]" Seat Pressure, 1.160" Coil Bind They have a one-piece billetDual Valve Spring Set, 551 Spring Rate1. 550" Outer OD, 240@1. 900" Seat Pressure, 1. 160" Coil Bind CO943 16 943 16 COMP Cams offers a wide variety of valve springs to suit a multitude of applications. It is extremely important to use valve springs that will give the recommended spring pressure with the valve both on the seat and at maximum lift. The outside diameter of the recommended spring may require that the spring pocket be machined to a larger