Pertronix D200800 Flame-Thrower Black Cap Plug and Play Marine Billet Electronic Distributor with Ignitor II Technology with Black Cap for Chevrolet Small Block/Big Block Integrated patented Ignitor II technology with adaptive dwell control Non-vented distributor cap with stainless steel fasteners keeps the distributor cap firmly inplace Triple screen spark arrestor offers added protection Warranty: 30 months electronics / limited 1 year mechanical