1975, 1978 GMC K15 Suburban Base 4.1L 6 Cyl. 1976, 1978 GMC K15 Suburban Sierra Classic 4.1L 6 Cyl. 1977 GMC K15 Suburban Sierra Grande 4.1L 6 Cyl. 1976-1978 GMC K15 Suburban High Sierra 4.1L 6 Cyl. Detailed Notes: 1 Barrel Carburetor for Chevrolet Chevy GMC L6 4.1L 250 4.8L 292.
