If you want to take the hassle and heartache out of an engine swap, Chevrolet has 3 new choices for power. To show the world what they are capable of, three classic Chevys were chosen to showcase modern power. First up is a 1967 C/10 truck with the ZZ6 350. This is the ultimate evolution of the original small block, and it uses fuel injection to make 420 horsepower. Next is a 1978 Silverado with the 6.0-liter L96 engine. It is a spicy version of the iron-block LS series that was used in everything from the Escalade to the Camaro SS for over a decade.