It's simple: You want to know whether the Tundra has the guts-the size, strength, stamina and sheer capability-to do the work you need done. The work of a true, full-size truck. Offered with an available 381-horsepower 5.7-liter V8 engine, or a 4.6-liter V8, the Tundra is no ordinary 1/2-ton.