1968 69 Corvette 427-400HP Tri Power Alum Intake C3 Vette GM factory original Chevrolet Corvette tri power Winter intake manifold 6-barrel aluminum casting number 3937795 date code 22 6 8 June 22nd, 1968, this can be used for late 68 model year or an early 69 model year. It is a clean manifold still has his factor original finish never been blasted, no strip threads or helcoils or modifications $2.500.