Our HARD Motorsport Block-off Plate installs in the rear of the head for use with Euro coolant plumbing on U.S. engines, or for custom race plumbing.
Machined out of quality aluminum. Fits all U.S. M50, M52, S50, and S52 6-cylinder engines, including the 323, 325, 328, M3, and the Z3.
All hardware and gaskets are included.
6Mx16mm Hex Head Bolt x2
Lower Coolant Line Plug (see photos)