Hypercoils 8" OBD Coil-Over Spring - 1-7/8" I.D. - 125 lb. HSM61DE AMPCO-45 extruded aluminum bronze with

AMPCO-45 extruded aluminum bronze with 5% nickel added

64cc combustion chambers

150" cast crank

Two versions of the Victor Pontiac are available for 389-455 competition engines

500 Guide OD

Hypercoils 8" OBD Coil-Over Spring - 1-7/8" I.D. - 125 lb. HSM61DE AMPCO-45 extruded aluminum bronze withOptimum 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. HYPERCOILS because the most important race is the one you are in. Hyperco is a supplier of precision engineered, high performance suspension