This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet B60: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [Chevrolet C50: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [Chevrolet C60: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [Chevrolet Corvette: 1957, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980] - [GMC B6000: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [GMC C5000: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [GMC C6000: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990]