Product Description
Doug's Tri Y Header 63-91 GM Truck 265-400 SBC 2 & 4 WD 1 5/8-2" Primary 2 1/2" Collector Black Hi Temp Coated D300Y-BThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1969-1973 | Chevrolet | Blazer | |
| 1974 | Chevrolet | Blazer | |
| 1987 | Chevrolet | Blazer | |
| 1988-1991 | Chevrolet | Blazer | |
| 1975-1976 | Chevrolet | C10 | |
| 1977-1986 | Chevrolet | C10 | |
| 1963-1967 | Chevrolet | C10 Pickup | |
| 1968-1973 | Chevrolet | C10 Pickup | |
| 1974 | Chevrolet | C10 Pickup | |
| 1967 | Chevrolet | C10 Suburban | |
| 1968-1973 | Chevrolet | C10 Suburban | |
| 1974-1976 | Chevrolet | C10 Suburban | |
| 1977-1979 | Chevrolet | C10 Suburban | |
| 1980 | Chevrolet | C10 Suburban | |
| 1981-1986 | Chevrolet | C10 Suburban | |
| 1975-1976 | Chevrolet | C20 | |
| 1977-1978 | Chevrolet | C20 | |
| 1979-1980 | Chevrolet | C20 | |
| 1981-1986 | Chevrolet | C20 | |
| 1963-1967 | Chevrolet | C20 Pickup | |
| 1968-1973 | Chevrolet | C20 Pickup | |
| 1974 | Chevrolet | C20 Pickup | |
| 1967 | Chevrolet | C20 Suburban | |
| 1968-1972 | Chevrolet | C20 Suburban | |
| 1973-1976 | Chevrolet | C20 Suburban | |
| 1977-1979 | Chevrolet | C20 Suburban | |
| 1980 | Chevrolet | C20 Suburban | |
| 1981-1986 | Chevrolet | C20 Suburban | |
| 1975-1977 | Chevrolet | C30 | |
| 1978 | Chevrolet | C30 | |
| 1979-1986 | Chevrolet | C30 | |
| 1963-1967 | Chevrolet | C30 Pickup | |
| 1968-1973 | Chevrolet | C30 Pickup | |
| 1974 | Chevrolet | C30 Pickup | |
| 1975-1976 | Chevrolet | K10 | |
| 1977-1978 | Chevrolet | K10 | |
| 1979-1980 | Chevrolet | K10 | |
| 1981-1986 | Chevrolet | K10 | |
| 1963-1967 | Chevrolet | K10 Pickup | |
| 1968-1973 | Chevrolet | K10 Pickup | |
| 1974 | Chevrolet | K10 Pickup | |
| 1967 | Chevrolet | K10 Suburban | |
| 1968-1973 | Chevrolet | K10 Suburban | |
| 1974-1976 | Chevrolet | K10 Suburban | |
| 1977-1979 | Chevrolet | K10 Suburban | |
| 1980 | Chevrolet | K10 Suburban | |
| 1981 | Chevrolet | K10 Suburban | |
| 1982 | Chevrolet | K10 Suburban | |
| 1983 | Chevrolet | K10 Suburban | |
| 1984-1985 | Chevrolet | K10 Suburban | |
| 1986 | Chevrolet | K10 Suburban | |
| 1975-1976 | Chevrolet | K20 | |
| 1977-1978 | Chevrolet | K20 | |
| 1979-1984 | Chevrolet | K20 | |
| 1985 | Chevrolet | K20 | |
| 1986 | Chevrolet | K20 | |
| 1963-1967 | Chevrolet | K20 Pickup | |
| 1968-1973 | Chevrolet | K20 Pickup | |
| 1974 | Chevrolet | K20 Pickup | |
| 1967 | Chevrolet | K20 Suburban | |
| 1968-1973 | Chevrolet | K20 Suburban | |
| 1974-1976 | Chevrolet | K20 Suburban | |
| 1977-1978 | Chevrolet | K20 Suburban | |
| 1979-1984 | Chevrolet | K20 Suburban | |
| 1985-1986 | Chevrolet | K20 Suburban | |
| 1977-1986 | Chevrolet | K30 | |
| 1968-1973 | Chevrolet | K30 Pickup | |
| 1974 | Chevrolet | K30 Pickup | |
| 1975-1976 | Chevrolet | K5 Blazer | |
| 1977-1986 | Chevrolet | K5 Blazer | |
| 1987 | Chevrolet | R10 | |
| 1987 | Chevrolet | R10 Suburban | |
| 1988 | Chevrolet | R10 Suburban | |
| 1989-1991 | Chevrolet | R1500 Suburban | |
| 1987-1988 | Chevrolet | R20 | |
| 1987-1988 | Chevrolet | R20 Suburban | |
| 1989 | Chevrolet | R2500 | |
| 1989-1991 | Chevrolet | R2500 Suburban | |
| 1987-1988 | Chevrolet | R30 | |
| 1989-1991 | Chevrolet | R3500 | |
| 1963-1966 | Chevrolet | Suburban | |
| 1987 | Chevrolet | V10 | |
| 1987-1988 | Chevrolet | V10 Suburban | |
| 1989-1991 | Chevrolet | V1500 Suburban | |
| 1987 | Chevrolet | V20 | |
| 1987-1988 | Chevrolet | V20 Suburban | |
| 1989-1991 | Chevrolet | V2500 Suburban | |
| 1987-1988 | Chevrolet | V30 | |
| 1989-1991 | Chevrolet | V3500 | |
| 1963 | GMC | 1000 Series | |
| 1963 | GMC | 1500 Series | |
| 1963 | GMC | 2500 Series | |
| 1963-1966 | GMC | 3000 | |
| 1963-1966 | GMC | 3500 | |
| 1975-1976 | GMC | C15 | |
| 1977-1978 | GMC | C15 | |
| 1975-1976 | GMC | C15 Suburban | |
| 1977-1978 | GMC | C15 Suburban | |
| 1967 | GMC | C15/C1500 Pickup | |
| 1968-1973 | GMC | C15/C1500 Pickup | |
| 1974 | GMC | C15/C1500 Pickup | |
| 1967 | GMC | C15/C1500 Suburban | |
| 1968-1973 | GMC | C15/C1500 Suburban | |
| 1974 | GMC | C15/C1500 Suburban | |
| 1979-1986 | GMC | C1500 | |
| 1979 | GMC | C1500 Suburban | |
| 1980 | GMC | C1500 Suburban | |
| 1981-1986 | GMC | C1500 Suburban | |
| 1975-1976 | GMC | C25 | |
| 1977-1978 | GMC | C25 | |
| 1975-1976 | GMC | C25 Suburban | |
| 1977-1978 | GMC | C25 Suburban | |
| 1967 | GMC | C25/C2500 Pickup | |
| 1968-1973 | GMC | C25/C2500 Pickup | |
| 1974 | GMC | C25/C2500 Pickup | |
| 1967 | GMC | C25/C2500 Suburban | |
| 1968 | GMC | C25/C2500 Suburban | |
| 1969-1973 | GMC | C25/C2500 Suburban | |
| 1974 | GMC | C25/C2500 Suburban | |
| 1979 | GMC | C2500 | |
| 1980-1986 | GMC | C2500 | |
| 1979-1981 | GMC | C2500 Suburban | |
| 1982-1986 | GMC | C2500 Suburban | |
| 1975-1977 | GMC | C35 | |
| 1978 | GMC | C35 | |
| 1967 | GMC | C35/C3500 Pickup | |
| 1968-1973 | GMC | C35/C3500 Pickup | |
| 1974 | GMC | C35/C3500 Pickup | |
| 1979-1985 | GMC | C3500 | |
| 1986 | GMC | C3500 | |
| 1991 | GMC | C3500 | |
| 1970-1973 | GMC | Jimmy | |
| 1974-1977 | GMC | Jimmy | |
| 1978-1987 | GMC | Jimmy | |
| 1988-1991 | GMC | Jimmy | |
| 1975-1976 | GMC | K15 | |
| 1977-1978 | GMC | K15 | |
| 1975-1976 | GMC | K15 Suburban | |
| 1977-1978 | GMC | K15 Suburban | |
| 1967 | GMC | K15/K1500 Pickup | |
| 1968 | GMC | K15/K1500 Pickup | |
| 1969-1973 | GMC | K15/K1500 Pickup | |
| 1974 | GMC | K15/K1500 Pickup | |
| 1967 | GMC | K15/K1500 Suburban | |
| 1968 | GMC | K15/K1500 Suburban | |
| 1969 | GMC | K15/K1500 Suburban | |
| 1970-1973 | GMC | K15/K1500 Suburban | |
| 1974 | GMC | K15/K1500 Suburban | |
| 1979-1980 | GMC | K1500 | |
| 1981-1986 | GMC | K1500 | |
| 1979 | GMC | K1500 Suburban | |
| 1980-1981 | GMC | K1500 Suburban | |
| 1982 | GMC | K1500 Suburban | |
| 1983-1986 | GMC | K1500 Suburban | |
| 1975-1976 | GMC | K25 | |
| 1977-1978 | GMC | K25 | |
| 1975-1976 | GMC | K25 Suburban | |
| 1977-1978 | GMC | K25 Suburban | |
| 1967 | GMC | K25/K2500 Pickup | |
| 1968-1973 | GMC | K25/K2500 Pickup | |
| 1974 | GMC | K25/K2500 Pickup | |
| 1967 | GMC | K25/K2500 Suburban | |
| 1968-1973 | GMC | K25/K2500 Suburban | |
| 1974 | GMC | K25/K2500 Suburban | |
| 1979-1986 | GMC | K2500 | |
| 1979-1986 | GMC | K2500 Suburban | |
| 1977-1978 | GMC | K35 | |
| 1968 | GMC | K35/K3500 Pickup | |
| 1969-1973 | GMC | K35/K3500 Pickup | |
| 1974 | GMC | K35/K3500 Pickup | |
| 1979-1986 | GMC | K3500 | |
| 1987 | GMC | R1500 | |
| 1987 | GMC | R1500 Suburban | |
| 1988-1991 | GMC | R1500 Suburban | |
| 1987 | GMC | R2500 | |
| 1988-1989 | GMC | R2500 | |
| 1987-1991 | GMC | R2500 Suburban | |
| 1987-1991 | GMC | R3500 | |
| 1963-1965 | GMC | Suburban | |
| 1987 | GMC | V1500 | |
| 1987-1991 | GMC | V1500 Suburban | |
| 1987 | GMC | V2500 | |
| 1987-1991 | GMC | V2500 Suburban | |
| 1987-1991 | GMC | V3500 |