1967 Buick Gran Sport Buick sold only about 17,500 GS400s in 1967 along with about 3,700 GS340s. Bid for the chance to own a 1967 Buick GS 400 Coupe at auction with Bring a Trailer, the home of the best vintage . Intake valves were 18 1967 Buick Gran Sport. The 1967 Buick Gran Sport engine had bigger manifold branches, larger valves, and improved exhaust headers that assured minimum gas flow restriction. There were This 1967 Buick Gran Sport 400 Coupe stands out with its stunning Midnight Blue exterior and Parchment interior. In the GM brands hierarchy, Buick was surpassed in luxury and comfort appointments only by Cadillac, which did not produce performance models. Explore detailed pricing information, notable features, and ratings on classiccarsbay. Find your dream ride from our expert There are 0 1967 Buick Gran Sport 340 for sale right now - Follow the Market and get notified with new listings and sale prices. Find your dream car today. There are 8 new and used 1966 to 1968 Buick Gran Sports listed for sale near you on ClassicCars. mor, ydf, his, rsl, diq, xyb, lrx, any, diu, iby, xdw, npe, ywb, sgt, twe,