Here is a 1970 Pontiac GTO that is a Real 242 Covertible Powered by the Original 400 WT Code V8 Engine tied to a 4-speed manual transmission The Car Originally had a 3 Speed Trans (The original Trans is included in the sale - Buyer must pay shipping on this ) Enigne and uninstalled Trans are numbers matching!! This GTO has power Brakes Coated in Nice Orbit Orange Paint The car has had a color change, it was originally Atoll blue with a white top Body is in Great Condition Frame is solid and clean Ralley II Wheels with correct firestone G70 tires Beautiful white Power Convertible top with stunning matching White interior Floor shift, Heat/ Defrost, Radio This is a great running GTO! Better now then when new! PHS Documented and Copy of original Window Sticker
The Pontiac GTO is an automobile that was built by Pontiac in generations from 1964 to 1974 model years, and by GM's subsidiary Holden in Australia from 2004 to 2006.
The first generation GTO was a muscle car of the 1960s and 1970s era. Although there were earlier muscle cars, the Pontiac GTO is considered by some to have started the trend with all four domestic automakers offering a variety of competing models.
For the 1964 model year, the GTO was an optional package on the intermediate-sized Pontiac Tempest. The GTO became its own model from 1965 to 1971. It became an option package again for the 1972 and 1973 intermediate Le Mans. For 1974, the GTO option package was offered on the compact-sized Ventura.
The GTO was selected Motor Trend Car of the Year in 1968.
The GTO model was revived from 2004 to 2006 model years as a captive import for Pontiac, a left-hand drive version of the Holden Monaro, itself a coup variant of the Holden Commodore
The Tempest line received another facelift for the 1970 model year. Hidden headlights were deleted in favor of four exposed round headlamps outboard of narrower grille openings. The nose retained the protruding vertical prow theme, although it was less prominent. While the standard Tempest and Le Mans had chrome grilles, the GTO retained the Endura urethane cover around the headlamps and grille.
The suspension was upgraded with the addition of a rear anti-roll bar, essentially the same bar as used on the Oldsmobile 442 and Buick Gran Sport. The front anti-roll bar was slightly stiffer. The result was a useful reduction in body lean in turns and a modest reduction of understeer.
Another handling-related improvement was optional variable-ratio power steering. Rather than a fixed ratio of 17.5:1, requiring four turns lock-to-lock, the new system varied its ratio from 14.6:1 to 18.9:1, needing 3.5 turns lock-to-lock. Turning diameter was reduced from 40.9 feet (12.5 m) to 37.4 feet (11.4 m).
The base engine was unchanged for 1970, but the low-compression economy engine was deleted and the Ram Air III and Ram Air IV remained available, although the latter was now a special-order option.
A new option was Pontiac's 455 HO engine (different from the round-port offerings of the 197172 cars), available now that GM had rescinded its earlier ban on intermediates with engines larger than 400. The 455, a long-stroke engine also available in the full-size Pontiac line as well as the Grand Prix, was dubiously rated by Pontiac as only moderately stronger than the base 350 HP 400 CID and less powerful than the 366 hp (273 kW) Ram Air III. The Pontiac brochure indicated the same 455 installed in the Grand Prix model was rated at 370 horsepower (280 kW). The camshafts used in the Ram Air III and the GTO 455 HO were the same. For example, the manual transmission 455 HO's used the same 288/302 duration cam as the Ram Air III. The 455 was rated at 360 hp (270 kW) at 4,300 rpm. Its advantage was torque: 500 lbft (678 Nm) at 2,700 rpm. A functional Ram Air scoop was available. Car and Driver tested a heavily optioned 455, with a four-speed transmission and 3.31 axle and recorded a quarter mile time of 15.0 seconds with a trap speed of 96.5 mph (155.3 km/h) . Car Life test car had the Turbo-Hydramatic 455 with a 3.55 rear differential, clocked 14.76 seconds at 95.94 mph (154.40 km/h), with identical 6.6 second 060 mph acceleration. Both were about 3 mph (4.8 km/h) slower than a Ram Air III 400 four-speed, although considerably less temperamental: the Ram Air engine idled roughly and was difficult to drive at low speeds. The smaller displacement engine recorded less than 9 mpg‑US (26 L/100 km; 11 mpg‑imp) of gasoline, compared to 10 mpg‑US (24 L/100 km; 12 mpg‑imp)-11 mpg‑US (21 L/100 km; 13 mpg‑imp) for the 455.
A new and short-lived option for 1970 was the vacuum operated exhaust (VOE), which was vacuum actuated via an underdash lever marked "exhaust". The VOE was designed to reduce exhaust backpressure and to increase power and performance, but it also substantially increased exhaust noise. The VOE option was offered from November 1969 to January 1970. Pontiac management was ordered to cancel the VOE option by GM's upper management following a TV commercial for the GTO that aired during Super Bowl IV on CBS January 11, 1970. In that commercial, entitled the "Humbler", which was broadcast only that one time, a young man pulled up in a new GTO to a drive-in restaurant with dramatic music and exhaust noise in the background, pulling the "exhaust" knob to activate the VOE and then left the drive-in after failing to find a street racing opponent. That particular commercial was also cancelled by order of GM management. Approximately 233 1970 GTOs were factory built with this rare option including 212 hardtop coupes and 21 convertbiles, all were "YS" 400ci 350 hp with either four-speed manual or Turbo Hydra-matic transmissions. This particular GTO in the commercial was "Palladium" silver with a black bucket interior. It was unusual in several respects as it also had the under-dash "Ram Air" knob just to the right of the VOE knob, and it sported "'69 Judge" stripes, as a few very-early '70 GTOs could be ordered with. It also had a Turbo Hydra-matic transmission, remote mirror, Rally II wheels, A/C, hood tach, and a new-for-1970 Formula steering wheel.
The Judge remained available as an option on GTOs. The Judge came standard with the Ram Air III, while the Ram Air IV was optional. Though the 455 CID was available as an option on the standard GTO throughout the entire model year, the 455 was not offered on the Judge until late in the year. Orbit Orange (actually a bright canary yellow) became the new feature color for the 1970 Judge, but any GTO color was available. Striping was relocated to the upper wheelwell brows.
An Orbit Orange 1970 GTO with the 455 engine and Turbo Hydra-Matic transmission was one of the featured cars in the movie Two-Lane Blacktop, which depicted an unlikely cross-country race between a new GTO and a quintessential hotrodded, grey primer-painted, 1955 Chevrolet drag car with a dual quad tunnel ram "454" engine and a four-speed manual. The GTO, owned by the studio, was not depicted as a Judge; however, in reality it was a RA IV powered Judge. They mentioned the "455" engine as it projected a more powerful offering to the public.
The new styling did little to help declining sales, which were now being hit by sagging buyer interest in all muscle cars, fueled by the punitive surcharges levied by automobile insurance companies, which sometimes resulted in insurance payments higher than car payments for some drivers. Sales were down to 40,149, of which 3,797 were the Judge. Of those 3,797 Judges built, only 168 were ordered in the convertible form: RA III, RA IV and 455HO. The general consensus is that six of the 168 built were ordered with the 1970-only D-Port 455HO 360 hp (270 kW) engine, a no-cost option, which explains the conflicting production figures over the years as to how many were built; 162 vs. 168. The '69/'70 "round-port" RA IV engine, a derivative of the '68 "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. It is widely speculated that PMD was losing $1,000 on every RA IV GTO and Firebird built, and the RA IV engine was highly under-rated at 370 hp (280 kW). Overall, only 37 RA IV GTO convertibles were built in 1970: 24 four-speeds and 13 automatics. Of the 13 1970 GTO RA IV/auto convertibles built only six received the Judge option. The GTO remained the third best-selling intermediate muscle car, out-sold only by the Chevrolet Chevelle SS 396/454 and Plymouth Road Runner.