This Chevrolet RH exhaust manifold is a high-quality aftermarket part designed to fit perfectly on vehicles with a gasoline fuel type. It is made of cast iron material and features an in-line cross-flow cylinder head type. The manifold has a bolt-on mounting style and can be universally fitted on various models of Chevrolet vehicles. The item is sold as unfinished and has a vintage part feature which makes it a perfect fit for car enthusiasts who want to restore classic Chevrolet models. The exhaust manifold is a direct replacement for OE/OEM part number 3973432 and its superseded part number is none. It can be used without an oxygen sensor location port and has no California Prop 65 warning.