Description
- High Quality Construction
- Dyno Proven 20 Horsepower Gains
- Reduce Valve Stem & Guide Wear
- Fits 65-74 Big Block
As a result, these rocker arms have been dyno-tested to produce 15-20 horsepower increases, making valve stems and guides last longer. Magnum Rollers fit 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974 Chevy big block engines (1.70 ratio) like a glove, helping ensure a lasting fit. Each rocker is supplied with a rocker ball and lock nut. Set of 16.
