New Old Stock Left Exhaust Manifold for 1973-75 Full Size Models Mopar #3744821Left Exhaust Manifold This is a New Old Stock left exhaust manifold for the models listed below with 400 or 440 cubic inch engines. Fits high performance applications. Original Mopar part in original packaging. Models Chrysler: All full size with 400 CI or 440 CI engines Dodge: All full size with 400 CI or 440 CI engines Plymouth: All full size with 400 CI or 440 CI engines Years 1973 1975