Each big block engine has its own unique history, features, and applications that have fueled strong opinions among automotive enthusiasts for decades. So, what exactly is a big block engine?

GM’s factory skunkworks turned out this Chevy Vega with a well-engineered all-aluminum small-block in 1972. It didn’t make it to production, but it inspired a generation of hot-rodders!

The 1970-1972 LT1 small block V-8 was available in a number of Corvettes but was only available for performance trims of the Camaro, the Chevrolet Camaro Z/28.

Two companies, Ford and General Motors, kept the big block V-8 chugging forward all the way through the ’80s, ’90s, and 2000s. Here’s a look at the five.