Welcome to the 318 Poly List which is an information site for those interested in learning more about the 318 Polyspherical Head engine as well as other members of the A Engine Family. Produced from 1956-1966 this is the home for the 277, 301, 303, 313, 318 & 326 cu.in. engine. Questions, answers, tune-up, speed secrets, learn about new and exciting aftermarket parts, build a Poly Stroker, buy, sell and trade parts, join in with photos and chat with others having the same interest on a moderated friendly message board, with no Spam. Here in 2013 our members are keeping the interest alive, come join in, here we speak Mopar and Poly...Nick Tiberio...Group Owner