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1980-1986 Mercury Cougar
1991-1996 Mercury Tracer
The Endurance Plus series of valve springs utilizes a specially processed Tool Room Material outer spring for increased endurance/reliability beyond the "SP" series
oil resistance properties through use of a patented adhesion system
Manley 10 Degree Valve Spring Retainer - 1.175 in / 0.850 in OD Steps - 1.625 in Dual Spring - Titanium - Set of 16 Synthetic Engine Oil 1980-1986 Mercury CougarProduct Description: Valve Spring Retainer 10 Degree 1. 175 in 0. 850 in OD Steps 1. 625 in Dual Spring Titanium Set of 16 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
