where is the engine serial number on a 1994 Toyota 4Runner?

TOYOTA Q&A : Where do I find my engine number? The engine number is stamped on the engine block itself. Since the engine number location *varies by engine* you will need to refer to the ‘Specifications section’ of your Owner's Manual to find a picture of the relative location of the engine number on your vehicles engine. IF you just want to know which engine (size) the vehicle came from the factory with you can post the vehicle identification number here. Good luck!