This famously reliable and economical 2.9 L engine powered Ford's Model T. It had a top speed of 45 mph, but was named one of the 10 Best Engines of the 20th Century by Ward's.

Also known simply as the "Ford Model T engine", this inline-four engine was built to outlast the life of the car itself.

Asked by Dan Henry · Last updated 5 years ago · 202.7K views