Make replacing your distributor simple with our true one-wire HEI distributors. With everything you need already built in there is no need to purchase extra ignition components to replace your failing or out dated ignition system. Benefits of our HEI distributors include optimal fuel burn, faster cold starts, quicker throttle response, and smoother engine idle. Designed specifically for durability and performance this distributor is sure to provide trouble-free service. Comes pre-assembled ready for install straight out of the box. Male terminal HEI spark plug wires 8mm or larger and HEI PIgtail pigtail connector required (sold separately) *See Fitment Guide for part number and to confirm this is the correct part before purchase.