GMPartsGiant.com offers the wholesale prices for genuine 1994 Chevrolet G30 parts. Parts like T.B.I. & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 5.7L, 8 Cyl 6.5L Diesel, 8 Cyl 7.4L. Model Code: 1 TON CARGO, 1 TON COMMERCIAL/RECREATIONAL VEHICLE, 1 TON PASSENGER.