20. Chevrolet Small-Block V8
The Chevrolet small-block V8 stands as an enduring legend, powering everything from Camaros to Silverados for generations.
Its rugged construction and straightforward design make it both durable and easy to rebuild, contributing to its long-standing popularity among mechanics and enthusiasts.
According to Hot Rod Magazine, this engine’s ability to surpass 200,000 miles is well documented, earning it a spot among the most reliable engines ever produced.