Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 150 lb. 11002B When the worst happens

When the worst happens

1-3/4" plate diameter hole size

1965-1972 Chevelle & El Camino

These Valve Lash Caps have a

1967-1981 Mercury Capri

Hypercoils 12" UHT Barrel 2-1/2" I.D. Coil-Over Spring - 150 lb. 11002B When the worst happensOptimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. The results are in and they are simply incredible: More Deflection Less Weight Increased Rate Linearity More Resistance to Bowing Fits All