Howards Performance Single Racing Valve Springs w/ Damper - O.D.: 1.250", I.D.: .870" R060004XL This design gives you strong

This design gives you strong toe rods that greatly improves performance

a must for high spring pressure applications

High-grip fluted sole

1 to 4 in Lift

Howards Performance Single Racing Valve Springs w/ Damper - O.D.: 1.250", I.D.: .870" R060004XL This design gives you strongCoiled and heat treated in the finest facilities available. Howards research and development teams are constantly updating materials and manufacturing techniques, to provide the best possible valve springs. Howards Cams pioneered many valve spring developments since the 1950's, and are still working with the best engineers and race teams to be on the cutting edge of valve spring technology. The name Howards Cams has been synonymous with high