The 1970 GTO had been designed with engines displacing up to a full 455 cubic inches. The basic 455 was rated at "only" 360 hp, but it made a stout 500 pound-feet of torque. That's more twist than in any previous GTO, and other driveline components were strengthened to withstand the punishment, including the adoption of GM's "12-bolt" rear end. The 455 was also available with Ram Air, though it wasn't part of the Ram Air III and Ram Air IV family (both of which continued in '70 on the GTO in 400 cubic-inch form, with the III rated at 366 horses and the IV at 370). The two-barrel 400 was excised from the GTO program for '70, and the base engine became a 350-horse 400 four-barrel.
This 1970 Pontiac GTO diecast model was made by Greenlight Collectibles for their County Roads series in 1:64 scale