Chrysler A engine
The Chrysler A engine is a small-block V8 gasoline engine built by Chrysler with polyspherical combustion chambers. It was produced from 1956 until 1967, when it was replaced by the wedge-head LA engine. It is not related to the hemispherical-head Hemi engine of the same era.
T-bucket
Most are built purely for street or show use, and the big engines are more for show than for need — many are more powerful than the vehicles can actually make use of. Although the body shell is original in appearance, engines of a wide variety of makes are commonly used. The small-block Chevrolet is a common choice, since it is relatively small, light, easy to obtain and to improve, and performs well. Four-cylinder engines are common also, especially if the car is used regularly. Many install blowers (superchargers) on their engines, and people use modern fuel-injected engines.