1980-1981 Buick Century Base 4.3 Liter M64, 1980 Buick Century Base 4.3 Liter SM326/M15, 1980 Buick Century Base 4.3 Liter SM330/M15, 1980-1981 Buick Century Base 4.3 Liter THM200C/MV9, 1980-1981 Buick Century Base 4.3 Liter THM250C/M31, 1980-1981 Buick Century Base 4.3 Liter THM350, 1980-1981 Buick Century Base 4.3 Liter THM350C, 1980 Buick Century Base 4.9 Liter M64, 1980 Buick Century Base 4.9 Liter SM326/M15, 1980 Buick Century Base 4.9 Liter SM330/M15, 1980 Buick Century Base 4.9 Liter THM200C/MV9, 1980 Buick Century Base 4.9 Liter THM250C/M31, 1980 Buick Century Base 4.9 Liter THM350, 1980 Buick Century Base 4.9 Liter THM350C, 1977 Buick Century Base 5.0 Liter SM326/M15, 1977 Buick Century Base 5.0 Liter SM330/M15, 1977 Buick Century Base 5.0 Liter THM350, 1977 Buick Century Base 5.0 Liter THM400, 1977 Buick Century Base 5.7 Liter SM326/M15, 1977 Buick Century Base 5.7 Liter SM326/M15, 1977 Buick Century Base 5.7 Liter SM326/M15, 1977 Buick Century Base 5.7 Liter SM330/M15, 1977 Buick Century Base 5.7 Liter SM330/M15, 1977 Buick Century Base 5.7 Liter SM330/M15, 1977 Buick Century Base 5.7 Liter THM350, 1977 Buick Century Base 5.7 Liter THM350, 1977 Buick Century Base 5.7 Liter THM350, 1977 Buick Century Base 5.7 Liter THM400, 1977 Buick Century Base 5.7 Liter THM400, 1977 Buick Century Base 5.7 Liter THM400, 1979 Buick Century Custom 4.9 Liter SM326/M15, 1979 Buick Century Custom 4.9 Liter SM330/M15, 1979 Buick Century Custom 4.9 Liter SM465/M20, 1979 Buick Century Custom 4.9 Liter THM200/M29, 1979 Buick Century Custom 4.9 Liter THM200C/MV9, 1979 Buick Century Custom 4.9 Liter THM350, 1977 Buick Century Custom 5.0 Liter SM326/M15, 1977 Buick Century Custom 5.0 Liter SM330/M15, 1977 Buick Century Custom 5.0 Liter THM350, 1977 Buick Century Custom 5.0 Liter THM400, 1977 Buick Century Custom 5.7 Liter SM326/M15, 1977 Buick Century Custom 5.7 Liter SM326/M15, 1977 Buick Century Custom 5.7 Liter SM326/M15 ...See Application Guide for Additional Fitments