Description
1964 1967 A Body Convertible or Boxed Frame Crossmember RCAEC1 400 transmission dipsticks 7L V8 1977 1978 Year Make Model Submodel masks 6CK19TZZAA CRN 7L V8 1977 1978 GMC K15 Base 305 5L V8 1979 1980 GMC C1500 High Sierra 400 6 Holley's BILLET LS Throttle Bodies are the BIGGEST BORE (in the 90 to 95mm category) MOST FEATURE LOADED available