Chevrolet El Camino
Chevrolet reintroduced the El Camino four years later based on the Chevrolet Chevelle. The 1964 model was identical to the Chevelle forward of the B-pillars and carried "Chevelle" and "El Camino" badges, but Chevrolet marketed the vehicle as a utility model and Chevelle's most powerful engines were not available. Initial engine offerings included six-cylinder engines of 194 and 230 cubic inches with horsepower ratings of 120 and 155, respectively. The standard V8 was a 283 cubic-inch Chevy small block with two-barrel carburetor and 195 horsepower (145 kW) with optional engines including a 220-horsepower 283 with four-barrel carburetor and dual exhausts. Added to the El Camino's option list during the course of the 1964 model year were two versions of the 327 cubic-inch small block V8 rated at 250 and 300 horsepower (220 kW) — the latter featuring a higher compression ratio of 10.5:1, larger four-barrel carburetor and dual exhausts.
Source: Wikipedia, 2012