COMP Cams Cam & Lifter Kit B455 252HGood performance upgrade for stock camshaft. Great torque and mileage in 400 with stock gear ratio, smooth idle. Catalog User 1 This Part Fits: Year Make Model Submodel 1971 1973 Buick Centurion Base 1973 1974 Buick Century Base 1973 1974 Buick Century Luxus 1968 1974,1976 Buick Electra 225 1968 1974 Buick Electra 225 Custom 1974 Buick Electra 225 Limited 1967,1973 Buick Electra Base 1975 Buick Electra Custom 1975 1976 Buick Electra Limited 1970 1976