318 dodge polysphere parts 5.74K viewsNovember 17, 20160 Scootr-the-pinstriper November 16, 2016 0 Comments Are intake manifolds and valve covers available for 318 Mopar polysphere engines?Share and Enjoy !0Shares0 0 1 AnswerActiveVotedNewestOldest 0 DMarv Posted November 20, 2016 0 Comments Thanks for your question. Unfortunately Offenhauser does not make an intake manifold or valve covers for the 318 Poly engines.Share and Enjoy !0Shares0 0 Register or LoginOffenhauser Sales Corp, 5300 Alhambra Avenue, Los Angeles, CA 90032Phone: (323) 225-1307