Manley 1.580 Diameter Valve Spring Cups - Spring O.D.: 1.580", Cup O.D.: 1.570", Cup I.D.: .635", Wall/Shlder Height: .140", Shlder Dia: .825" - (Set of 16) NC002015Y Gaskets / O-Rings / Hardware

Gaskets / O-Rings / Hardware Included

Dual 2-1/4 in Outlets

Clear shields are generally used for night racing or very low light conditions

1996-1999 Chevrolet K1500 Suburban

1955-1955 GMC 280-22

Manley 1.580 Diameter Valve Spring Cups - Spring O.D.: 1.580", Cup O.D.: 1.570", Cup I.D.: .635", Wall/Shlder Height: .140", Shlder Dia: .825" - (Set of 16) NC002015Y Gaskets / O-Rings / HardwareManley Spring Cups offer superior performance and reliability and are the choice of many top engine builders. Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown University, our journey began with a