Bellhousing, 11 Inch Big Block Chevrolet

A reproduction of the original '621' 11" bellhousing used on Chevrolet models with big block or small block engines equipped with an 11" clutch. Accepts Saginaw, Muncie, Borg-Warner and Tremec TKO/T56 transmissions with a 4-11/16" pilot bore. Fits up to 11" clutch on a 168 tooth flywheel. Also fits 153 tooth flywheel when used inconjunction with the proper starter.