GTO. Well we really weren't trying to prove anything. The instrument cluster featured four dials and four LCD under each of them. 455 motor | Pontiac GTO Forum Muscle Car Campy shows us 1 of 15 built. GTO, "I really love the look of a black '71 with a wing and I wanted a 455 H.O. But despite being a high-performance vehicle, with under six seconds needed to reach 60 mph (97 kph) from a standstill, it featured drum brakes in all corners. Casentini told him his GTO was not for sale, but he gave the pilot's name and phone number to his wife.". The 62-year-old Phoenix, Arizona, resident shared that winning Best of Show at the 2033 GTOAA Western Regional in San Pedro ranks as one of his most memorable moment with his H.O. The 455 GTO was rated at 360 hp, competitive with similar engines in the industry, but Pontiac didn't put much effort into making it the barnstormers that the LS6, Stage 1, and W-30 were. Most other 455s were drilled for 4 bolt mains, but only used two bolt main caps. Sure. Heres Everything You Need to Know. 582-Inch Big-Block Chevy Puts Down 1,460 HP at 7,400 RPM! roller, 196/207 dur. But Gregg did not drop the compression on his Ram Air III--it's still 10.5:1. . The result of this was that it added fuel to the fire and the power and torque losses figures ended up looking even worse on paper. (code YA) was rebuilt by Steve Foster from Tyngsburo, Massachusetts. In some ways, this GTO can give a driving experience no computer-assisted nonsense could ever provide. It would be the last year that it would be featured as an option of the LeMan series as they would be reduced as an option of the compact Ventura GTO, the next year. The first step up was the 455 at $57.93 with air induction for an additional $84.26. And those are certainly attributes of which to be proud. Of course, there's the famous L75 455 H.O. Updated on 12/23/18 There's no question that 455 cubic inches of displacement equal a big motor. Yes, these numbers are less than the others but lets realize that this engine gives up displacement, head and exhaust manifold flow and mods to the other 2 traditional Pontiacs and it spots 39 years of engine development to the LS1. The American Muscle car bubble was coming to its end, as was apparent from the sales figure. This phenomenon only drives up the price even further. For 1970, a bored-and-stroked version of the Pontiac big-block V8 arrived. 1973 Pontiac GTO. We and our partners use cookies to Store and/or access information on a device. The GTO was a popular seller at the time and remains a sought-after target for collectors today, and few iterations can match the brawny 1970 Pontiac GTO 455. The second generation was built on the success recorded by the LeMans GTO and the GM approved the car for production. Are there other GTOs that will perform better? For some younger folks who grew up with Pontiacs and Chevrolet sports cars sharing the same LS V8, it's wild to realize it was a whole different ballgame five decades ago. Unfortunately for the seller, the buyer ended up not following through on the purchase, so the car is listed here on eBay with two days remaining in the auction. High Output! 1973 Pontiac 455, two-bolt mains (YC-code), .030-inch overbore (462 ci), balanced, blueprinted for compression ratio and rod clearance, cylinders honed. When he learned that I had one, he was very excited, and told me it was the first California GTO to be professionally scored by the GTOAA in seven years. ]]> Ride and drive hard to beat. Rtro cars voiture Amricaine 1969 Pontiac GTO Bazooka - Twitter 1971 Pontiac GTO - Muscle Car Facts "I saw things that I had never seen before on any Pontiac I have ever restored, including original spot welds, factory lap seams, and factory firewall markings. At the front, it was available with two bucket seats, while the rear passengers could sit on a vinyl-covered bench. The name GTO was given by John DeLorean (who would later leave the company and create the DeLorean Motor Company) after the Italian GTO abbreviation (Gran Turismo Omologato). I left many notes on the windshield with my phone number. - High Performance . Located in Gresham, Oregon, the GTO is an unrestored example of one of the best looking GTOs that were produced between 1964 and 1974. Power is fed through a 4-speed trans to a 3.55 Safe-T-track rear. Pontiac GTO (1970) - pictures, information & specs - NetCarShow.com Inside the 455 Super Duty - Tech Articles - High Performance Pontiac The 1965 GTO was announced by Pontiac in a press release on September 13, 1964. The first digit of the code indicates Manual or Automatic transmission. He gave the project to Darrell Davidson of Supercar Creations in Norton, Ohio. It would be the last year that it would be featured as an option of the LeMan series as they would be reduced as an option of the compact Ventura GTO, the next year. A 360hp version came with 10.0:1 compression, while the 370-horse option, installed in the GTO and Grand Prix, used 10.25:1 compression. However, their popularity seems to be decreasing day by day since the age old technology used in the engines make their use very unfeasible. It has a displacement of 400 cu in (6.6 L) and a bore of 4.12 in (104.7 mm). A History Lesson in Pontiac V8 Power - Engine Builder Magazine The hard top featured thick B-posts at the back and a flat deck behind it. "It's a true California car and has its California-only smog-equipment still attached and working.". Please check the link at the bottom of todays article to view all the actual vehicles nominated for this months Ride of the Month. After 1974, round-port 455s were no more; the 455 soldiered on through 1976. After passing over several candidates, Scott received notice from a member of the Performance Years website about a driver-quality Ram Air IV in Indiana. THE GOATSTom Burton's '71 455 H.O.-equipped GTO (it was originally a 400) was absolutely breathtaking in Starlight Black. A specific Pontiac grille and narrow headlights made a good impression at first sight. But to understand why 60s muscle car fans keep saying this, here's one car for your focal point. Why did Pontiac do this in such a seminal year? Well not really. Blocks 439, 389, and 319 lack a displacement stamp. Peak torque is of course lower than the H.O.--39.98 ft-lb to be exact but its roughly 2 ft-lb better than the '04 GTO. Bringing the California-emissions smog equipment to show quality was a challenge. Under the hood, the carmaker stuck a 6.4-liter fed by three carburetors. but it made this power at approximately 5,500 rpm were the H.O. Performance Powertrain specs GTO 455 H/O competition Chevrolet Camaro Z/28 vs Dodge Challenger R/T 440 Six Pack vs Pontiac GTO 455 H/O vs Ford Mustang Cobra R Pontiac Firebird Trans Am 455 Super Duty vs Pontiac GTO 455 H/O Ford Mustang Boss 351 Ram Air vs Pontiac GTO 455 H/O Lancia Stratos HF vs Pontiac GTO 455 H/O $650. You can compare the technical specification with other 1970 pontiac gto 455 car models, view photos and reviews. The speedometer was adorned with e chequered flag symbol on its dial. All 1971 455 engines came wearing a Rochester Quadra-jet carburetor with variable geometry fuel jetting. The 70 Lemans Sport coupe, did have twin hood scoops. He runs a mix of 92/112-octane gas to ward off detonation. Other runs were close at 293.74 hp and 294.61 hp. What made the GTO even more special were its optionsor lack thereof: 4.33 gears, gauges, manual steering, drum brakes, optional bench seat, radio-delete, and little else. Pontiac 455 V8, Firing Order and Information : Engine Facts.com 24 Sep 2022, 01:08 UTC 71 convertible is a rare car that gets a lot of attention. GTO to race and that the initial runs on the Motion chassis dyno revealed about 180 hp to the wheels. Per Mike Noun in the January 2021 issue of Pontiac-Oakland Club Internationals Smoke Signals, there was a corporate shake-up in February 1969 when John DeLorean was promoted to General Manager of Chevrolet. This 1970 GTO is an unrestored survivor . . It was also available with two extra options: economy and high output - 265 hp with the economy, and 360 hp with the latter. Both engines produced peak torque at 3200 RPM (on the high side for Buick) but, when Buick added an extra 0.125-inch to the bore for 1970 to create the 455, 510 lb-ft of torque was available at 400 rpm less. All in all, this is one of the most popular muscle cars of the era. This is not information about the actual vehicle nominated for Junes Ride of the Month, just general information on the vehicle itself. displacement and allowed the 455 cu-in (7.5-liter) engine on the GTO, but the power disclosed was not real. Nonetheless, it's safe to say that this GTO's special-ordered options and build location make it a unique find in the Pontiac hobby. Then they glassbead-blasted the suspension components, primed them with SEM Self-Etching Primer, painted them with Satin Black, and reinstalled them on the painted frame. There wasnt a comment, regarding the paint being original or re-painted. The sales of Road Runner fell from being 43,404 in 1970 to a 14,218 in 1970. 1974 Pontiac GTO | Hemmings With its powerful engine, sleek exterior, and fast-charging performance, the Pontiac GTO was the ultimate muscle car. Engine Code Beginning in 1955 a 2-digit engine code was stamped just under the passenger-side cylinder head. The Ford Coyote V8 Crate Engines That You Can Buy in 2022, The 725-HP ProCharged C8 Corvette Is Finally Real, After Almost Two Years, V8 Powered 1967 Chris-Craft Super Sport is Classy in Ways No Modern Speed Boat Is, Funny as Hellcat Dodge Charger EV Mock Ad Says "The Charger is Because You Plug It In", Messerschmitt Bf-108, the V8 Powered Little Brother of the Bf-109. As expected, a limited-slip differential was a standard feature for the GTO. His engine was rebuilt and bored .030 over but everything else is comprised of original or stock replacement parts. Neat car, like the whitewalls ( its a good chance it was delivered that way) Tje 455 was a good engine in these cars , in a road test of the day it was just as fast as the RAIII in the quarter. Zero to Sixty. Only one engine was available in the 1974 GTO: a Pontiac 350-cu.in. Required fields are marked *. It was a true muscle car. The standard GTO engine was still the 400 CID V8, but now with a compression of 8.2:1. The 455, with its "undersquare" dimensions (long stroke relative to bore), emphasized torque over hp, and though advertised as less powerful than some high-performance iterations of the 400, it had a torque rating of 500 ft/lbs., 55 more ft/lbs. After 18 years, Bob Lutz (former chairman of the GM) announced that a new generation will come soon. Muscle Car Specifications Performance Model 1971 Pontiac GTO Engine Used 455ci/365hp Zero to Sixty 6.1 sec Quarter Mile 13.4 sec @ 102.0 mph The 1971 GTO is distinguished by a hood featuring two large forward air intakes. It was amazing to witness a 34-year-old Pontiac with its sheetmetal still looking like brand-new," he said. But that's what it took for Pontiac to compete against larger competitors. The 455 engine offered more power and torque than the standard V8, making it a popular choice for performance-minded buyers. Pontiac GTO 455 (1970) - Car Specifications The Ram Air Super Duty was another casualty, and if it was to become a production engine, it too would require less compression. Thankfully we had no detonation and no breakages for the duration of the test. It was then sanded and painted with a two-part urethane custom mix that had flattener added until it was the correct 60 percent gloss. The addition options that were available were 2 new 455-CID V8s. Other national awards include three consecutive Best of Shows at the World of Wheels (Boston, 2007-2009), as well as the event's coveted "Top Show Car" Crystal Award, and numerous other local and regional First Place accolades. Engines - Butler Performance The floor-mounted gearshift selector for the automatic transmission featured a wooden panel. Light Em Up: Drag Racing, the HOT ROD Power Tour Way, What Is a Vista Cruiser? Interestingly, Oldsmobile, Buick, and Pontiac all marketed 455s starting in 1970, and they were engineered from different philosophies and had different trajectories through the decade. But tell us, between those two, which one would you rather drool over in a gas station? Pontiac GTO 455 manual and specifications: 0-60 mph, top speed, max power, engine type, displacement, fuel consumption, production country and other information This vehicle is truly one of a kind and one of the cleanest, most original GTO's that you will find! Beginning at 330 cubic inches in 1964, the limit was increased to 400 cubic inches in 1965. Those Rally IIs with white raised letter tires would look pretty sharp. General Motors 455 Cubic Inch Big Block - LiveAbout Another federal laws for 1973 demanded that the front bumpers of the car should be capable of withstanding 5-mile-per-hour impacts completely so there is no damage to the body. The 455 H.O. Only 10,532 GTOs were sold in 1971, 661 of which were non-Judge equipped convertibles. Restored by: Supercar Creations, Norton, OH; Central Virginia Machine Service, Burkeville, VA; Cliff Ruggles; Jody Haag; Pete Serio. To power the vehicle, a Tri-power V8 has been bored out to 428cc and is mated to a 4-speed manual transmission. No aftermarket intakes or headers were allowed. For $125,000 before taxes and fees, you could buy a 2022 BMW M8. But what many people dont know is that in 1970, Pontiac made a historic move and put a 455 cubic inch V8 engine in the GTO, which made it one of the most powerful muscle cars of the era. He even retained the 10.75:1 compression ratio and runs premium fuel with tetraethyl lead additive. PERFORMANCE AND LOOKS COMBINED. Of the 41,000 GTOs produced in 1970, 4,146 were equipped with the 455 cubic inch V8 engine. Aside from the GTO, the 455 was only available for full-size models. Pontiac V8 Engine Codes and Specs - WOW Muscle Cars There's one trip that Lesiczka would consider even more special for his California-born GTO-a return to San Francisco and a drive across the Golden Gate Bridge, something its original owner did with his GTO many times. With all marketing efforts concentrated into earning the younger peoples attention, the GTO was also featured in movie, transforming it into a legendary vehicle. In this article, well take a look at the history of the Pontiac GTO, what year Pontiac put the 455 in the GTO, and how this engine changed the muscle car game forever. ClassicCars.Com. Inside, Pontiac tried to say to its clients that it was not only a sporty brand but also a luxurious one through the wood grain on the dash. Of course, that maturity was thrown out the window with the Judge package. ENGINES. Displacement unleashed: 1970 brought several flavors of GM 455 - Hagerty Engine Get new comment updates via email. The same attention to detail can be found with the gas cap, as several were used during the model year. Instead, enthusiasts had to be satisfied with a high-output 455 from the Grand Prix. No, a Pontiac 400 and a Pontiac 455 are not the same block.