Fits GM 1st Gen F & X Body w LS motor 1 7 8 Long Tube Headers S S 70101308 RHKR MediumMargin 9L V8 1979 GMC K1500 exhaust straight pipe 9L V8 1979 GMC K1500 Suburban 305 5L V8 1976 Chevrolet Laguna 305 5L V8 1979 GMC C1500 Suburban 305 5L V8 1980 GMC C2500 305 5L V8 1978 Buick LeSabre Base 305 5L V8 1978 Buick LeSabre Custom 305 5L V8 1977 Buick Regal 305 5L V8 1978 Chevrolet C30 305 5L V8 1985 Chevrolet Caprice Classic 305 5L V8 1978 GMC C35 305 5L V8 1973 Chevrolet C30 Pickup 307 5L V8 1973 Chevrolet Blazer 307 5L V8 1973 Chevrolet C10 Pickup 307 5L V8 1973 Chevrolet C10 Suburban 307 5L V8 1973 Chevrolet C20 Pickup 307 5L V8 1973 Chevrolet C20 Suburban 307 5L V8 1973 Chevrolet K30 Pickup 307 5L V8 1982 Buick Riviera Limited Edition 307 5L V8 1983 Buick Riviera XX Anniversary Edition 307 5L V8 1981 Pontiac Bonneville 307 5L V8 1973 GMC K15 K1500 Pickup 307 5L V8 1973 GMC K25 K2500 Pickup 307 5L V8 1973 GMC K35 K3500 Pickup 307 5L V8 1973 GMC P25 P2500 Van 307 5L V8 1973 GMC P35 P3500 Van 307 5L V8 1981 Pontiac Catalina 307 5L V8 1973 GMC C15 C1500 Pickup 307 5L V8 1973 GMC Jimmy 307 5L V8 1973 Chevrolet K10 Pickup 307 5L V8 1973 Chevrolet K10 Suburban 307 5L V8 1973 Chevrolet K20 Pickup 307 5L V8 1973 Chevrolet K20 Suburban 307 5L V8 1973 GMC C25 C2500 Pickup 307 5L V8 1973 GMC C35 C3500 Pickup 307 5L V8 1968 Chevrolet Chevelle 327 5 6L V8 1965 1966 Oldsmobile Starfire 1977 1979 Oldsmobile Delta 88 403 6 This header features mandrel bent 1 7 8" primaries and 3" collectors to provide excellent exhaust flow and scavenging to ensure improved throttle response and increased power across the entire RPM range Buick Apollo and Oldsmobile Omega) platforms