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The '69/'70 "round-port" RA IV engine, a derivative of the '68½ "round-port" RA II engine, was the most exotic high-performance engine ever offered by PMD and factory-installed in a GTO or Firebird. The 1969 version had a slight advantage as the compression ratio was still at 10.75:1 as opposed to 10.5:1 in 1970.
The Sprint-optioned Tempest and LeMans models were not popular choices for performance enthusiasts during their four year run, being outsold by the bigger-engined GTO. The Sprint option and SOHC six-cylinder engine were discontinued after 1969, and replaced with a Chevrolet-built 250 cu in (4.1 L) OHV six-cylinder engine, becoming the base ...
• This GTO Judge features a replacement 400-cubic-inch Ram Air III V-8 with a Muncie M20 four-speed manual transmission and a Safe-T-Track rear axle. • The auction ends on Sunday, April 24 ...
A new GTO option became available, The Judge. Featuring special decals, two Ram Air versions of Pontiac's 400 engine, and a rear spoiler, The Judge was originally conceived as a barebones muscle car based on the Tempest to compete with the new sub-$3,000 Plymouth Roadrunner. Plans for the new model were terminated, and Pontiac division head ...
For the 1969 and 1970 model years it was the standard engine in both the Firebird Trans Am and the GTO Judge. It was the same engine as the '67-'68 400 HO [22] but for 1969 and 1970 it included a driver-selectable outside air induction system on the GTO(it was a separate option on Firebird), with the hood vents opened and closed using a knob ...
In spite of a GM unwritten edict against engines larger than 330 cu in (5.4 L) in intermediate cars, DeLorean (with support from Jim Wangers from Pontiac's ad agency), came up with the idea to offer the GTO as an option package that included a 389 cu in (6.4 L) engine rated at 325 or 348 hp (242 or 260 kW; 330 or 353 PS).
In 1974, the Pontiac GTO name moved to the Ventura from the intermediate LeMans line. The GTO package gave the basic Ventura a 350 cu in. (5.7L) engine with a four-barrel carburetor of about 200 hp (149 kW). The package also came with a functional "shaker" hood scoop, tri-color GTO decals, Rally II wheels, and special grill-mounted driving lights.
And all hail for the first real muscle car.