Can't seem to find it. I've looked with flashlite & mirror at the area around the catalytic converter. There is a rusty plate on the CAT but that would not be the engine number. I see a number on the exhaust manifold and a number moulded into the head. The two replies I received on the question before were inconsistent. One said an aluminum plate rivited to the mounting cradle; the other said a rusty plate near the CAT. I wanted the engine number to use in filling out a replica window sticker. Thanks, Jerry.