July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Engine Model Stamping

The engine model is stamped on the cylinder block.

These engine model numbers are as shown as follows.

ENGINE MODEL NUMBERS

Engine model	Engine displacement
6B31	3.0L

The engine serial number is stamped near the engine model number.

Fig 1: Identifying Engine Model Numbers

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.