My present engine test stand, which I made a year or so ago, was made from an old microwave cabinet my wife didn't want any more. It replaced a 2x4 with a 5/8 ply top I had been using.

You can see the new one has a cabinet and a drawer, that come in handy during testing and break-in. The cabinet holds all my engines and associated equipment. The drawer has long tuned pipes and holds tools, my tach and other items I may need during the test.

The test stand has lockable, swivel casters (beats putting a concrete block on my old table to keep a big Moki or gasser from turning it over) and it has handles to help move it.

I have my smaller, glow engine mount on one side and a presently unused large engine mount on the other. The well used pipe mount (looks black) swivels in and out to accomodate different size headers and engines.