Under the hood is a 2.4L Toyota 22R-E four-cylinder engine. Previously, this engine had been propane powered, but all of the propane equipment was gone when McBride purchased the Courier. He chose to run a carburetor, so he installed a Weber 32/36 and all the needed components. A high-flow air cleaner and a header from Hedman Hedders improve the engines breathing. Electrical needs are handled by a custom Toyota/Ford wiring harness, Chevy one-wire alternator (on ToolBox Guy mount), and a Optima YellowTop battery. The engine is cooled by a custom Summit Racing aluminum radiator fitted with a Flex-a-lite 12-inch-diameter electric fan. Note how the radiator had to be fitted inside the core support and the radiator cap is accessed through a hole in the core support. Other underhood mods include a Wilwood clutch master cylinder and brake master cylinder; PSC power steering pump and reservoir; Derale power steering cooler; ARB air compressor; and Warn winch control unit.