Tom Lieb designed the Scat engine in 1990, by cutting a Chevy V-8 in half and using the front four cylinders. It was in response to the increasing price of a Volkswagen engine for midget racing. The thought was that this engine used enough Chevy aftermarket part to make it a reasonable alternative.
It features a 4.125” bore X 3.0” stroke, for 163 cubic inch displacement. The engine produces 320 hp @ 7300 rpm.
A KSE water pump and a Barnes dry sump circulate fluids through the engine.
Some of the pros for the engine included, the engine being short so it added rear weight bias; better balancing; use standard Chevy heads (cut in half).
The cons were: weight not offset to the left; needed custom crank and cam. The engine was also somewhat top heavy, raising the center of gravity of the car.