All full-sized Pontiacs, including Catalinas, received a new Grand Prix-like V-nose grille for 1970 along with 'horns ports' on a facelifted front end and new taillights mounted in the rear bumper. Catalina sedans and coupes now came standard with a smaller 255-horsepower 350 cubic-inch Pontiac V8 as standard equipment with optional engines including the previously standard 400 two-barrel rated at 265 and 290 horsepower (still standard on convertibles and Safari wagons), a 330-horsepower 400 four-barrel and a two versions of the new 455 cubic-inch V8 rated at 360 horsepower (270 kW) or 370 horses with the "HO" option. As in past years, a three-speed manual transmission with column shift was standard equipment, but most cars were equipped with the optional three-speed Turbo Hydramatic. Also offered for 1970, but seldom ordered, was a two-speed automatic transmission, Turbo Hydramatic 300 that was available with the 350 V8.
The 1965-70 GM B platform is the fourth best selling automobile platform in history after the Volkswagen Beetle, Ford Model T and the Lada Riva.
Source: Wikipedia, 2012