While they've since been discontinued due to emissions standards and gas crises, many older American cars used to have massive (and massively awesome) engines.

Volvo once created an engine known as the redblock. Its production didn't continue into the 2000s, but it's still regarded as a fantastic engine today.

The new 6.7L V8 LS6 delivers 520 pound-feet of torque, with GM claiming the highest production torque of a naturally aspirated V8 ever - a bold claim, no doubt.