Tiny engines less than 50ccs have been commercially popular for a while now, and they’re growing in complexity. Simple single-cylinder models have given way to inline-four cylinders and even V8s.

For American muscle cars, the engine is just about the most important aspect. After all, "What's that have in it?" might be the most common question you'll get when showing off your car after "What is ...

In automotive nomenclature, small-block V8 engines are typically physically smaller than their big-block counterparts, hence the nickname. With some exceptions, the piston bores, stroke, cylinder head ...