Fits 265, 283, 302, 305, 327, 350, 396, 400, 402, 427, 454, 502 SB BB Chevrolet Engines. SMALL / BIG BLOCK CHEVY "LONG" WATER PUMP STUD KIT. You can't beat studs for the ease of removal and installation of gaskets, covers, pans, and other frequently accessed parts.