For 1975-1978 GMC K15 Intake Manifold APR 13598TNDC 1976 1977

1977 GMC K15 Indy Hauler 6.6L V8 Naturally Aspirated OHV GAS. 1977 GMC K15 Indy Hauler 5.7L V8 Naturally Aspirated OHV GAS. 1976-1977 GMC K15 Sierra Classic 6.6L V8 Naturally Aspirated OHV GAS. 1976-1977 GMC K15 High Sierra 6.6L V8 Naturally Aspirated OHV GAS.