Internally, there wasn't all that much difference between a Cadilac 472 V8 and the mack-daddy 500 big boy. With a bore of 4.3 in (109.2mm) and a stroke of 4.06 in (103.1 mm) ...

The 1986 Mack Super-Liner is still mostly original, including the paint and the 500-hp Mack V8 under the hood. Most of the changes Menges has made to it are with the lights and interior.

Mack's robust E9 engine, which is a 16-liter V8 design, ... will range from 350 to 500 hp. Marine engines include both raw water-cooled and keel-cooled models.