King Engine Bearings GM 326/350/389/400 w/ 3in Main (Size STD) Main Bearing SetKing Engine Bearings GM 326 350 389 400 w 3in Main (Size STD) Main Bearing SetThis Part Fits: Year Make Model Submodel 1975 Buick Apollo Base 1975 Buick Apollo SR 1975 1977 Buick Century Base 1975 1977 Buick Century Custom 1976 Buick Century Indianapolis 500 Pace Car 1975 Buick Century Luxus 1977 Buick Electra 225 1977 Buick Electra Limited 1975,1977 Buick LeSabre Base 1975 1977 Buick LeSabre Custom 1977 Buick LeSabre Custom Sport 1975 1977 Buick