The term crate engine refers to new engines as well as used. From complete turn-key solutions to build it yourself short blocks, there are crate engines available for a variety of purposes. While crate engines are often used as replacement engines for vehicles without a working engine, they can also be major upgrades.

Engine displacement is the most apparent difference between big block and small block engines, but bore, stroke, and the entire shape of the engine also play a factor. Some engines have a large displacement, but small-block architecture. Find out the differences, similarities, and where each engine style excels.

Do you have any aftermarket mods on your car? If so, ECU tuning can help you get the most out of your engine. ECU tuning lets you adjust important settings such as the air-fuel ratio and ignition timing to improve performance.