It is a new HEI distributor for small block/big block replacement for Chevys. Hei distributor:direct fit for GM application utilizing the 4-pin ignition module. HEI Complete Distributor:283, 305, 307, 327, 350, and 400 small blocks, and 396, 427, and 454 big blocks. Red cap High Quality: Heavy duty construction, high grade hardened steel gears. OE+ durability.75,000 high voltage coil spark through 9,000 RPM, upgrade for racing application About service - HEI distributor ,the customer service period is 1 year . SpecificationIt is a new HEI distributor for small block/big block Chevys.Cross Reference: MSD 8362 , ACCEL 59107CFeaturesDirect fit for GM application utilizing the 4-pin ignition module(1974—1985)65K high voltage coil, upgrade for racing application.Made by TS16949 certified OE distributor manufacturer. Provide consistent ignition over 9000 RPM.Compatible1973-1955 Chevrolet Bel Air-1955 Chevrolet One-Fifty Series ,Two-Ten Series1958 Chevrolet Del Ray1960-1955 Chevrolet Truck1962 Chevrolet P10 Series1962-1961 Chevrolet ,P30 Series1962-1966 Chevrolet Suburban1967 Chevrolet K20 Panel1968-1962 Chevrolet Chevy II1972-1958 Chevrolet Biscayne ,Brookwood1972-1962 Chevrolet Townsman1972-1968 Chevrolet P20 Van ,P30 Van1972-1969 Chevrolet Kingswood , Nova1973 Chevrolet Laguna1973-1955 Chevrolet Corvette1973-1959 Chevrolet El Camino , Impala1973-1961 Chevrolet C10 Pickup ,C20 Pickup ,C30 Pickup ,K10 Pickup ,K20 Pickup1973-1964 Chevrolet Chevelle , Malibu1973-1966 Chevrolet Caprice1973-1967 Chevrolet Camaro1973-1968 Chevrolet C10 Suburban , C20 Suburban , G10 Van , G20 Van ,K10 Suburban , K20 Suburban ,K30 Pickup1973-1969 Chevrolet Blazer1973-1970 Chevrolet G30 Van ,Monte Carlo