COMP Cams 1.250" Valve Springs 1436A 1957-1968 Mercury Montclair

1957-1968 Mercury Montclair

1965-1985 Pontiac Grand Prix

you can install the Resonator Option

1965-1981 Cadillac DeVille

Diesel Lift Pump Only

COMP Cams 1.250" Valve Springs 1436A 1957-1968 Mercury MontclairCOMP Cams Ovate Wire Springs are constructed from oval shaped wire as opposed to round. The unique oval shaped wire means there is more material occupying the same area than round wire springs to more efficiently distribute the operation stresses. Engineered with advanced processing techniques for longevity and reliability, Ovate Wire Springs are free of life shortening surface defects. Seat pressure: 105 lbs. 1. 700", Open Pressure: 310 lbs. 1. 200";