Lakewood safety bellhousing's are designed for maximum performance and durability. They are laser cut to improve speed and accuracy of manufacturing. They are roto-brated after welding and hydro-formed to relieve any stress created during manufacturing. They are S.F.I. 6.1 certified. Durable powdercoated finish for years of corrosion free service. This 6.246 in. (6.366 in. W/ Block Plate) deep bellhousing is designed to fit the 1964 to 1977 Olds 330 to 455 CID and the 1964 to 1981 Pontiac 326 to 455 CID, with mechanical linkage and 11 in clutch. Fits Muncie, BWT10 and Tremec TKO transmission. Block plate, and Grade 8 hardware included. Other applications available.