1973 pontiac 455 engine specsdivinity 2 respec talents

By 1976, the 455 was limping along at 200 horsepower and 330 foot-pounds of torque. The spots could probably be blasted, treated, filled, painted, and blended without too much fuss. . How many were produced ? 455.0 cu in. The SJ differed from the entry-level Grand Prix by virtue of its larger - Performance Data, automobile-catalog.com ProfessCars estimation (the car with basic curb weight, full fuel tank and 90 kg (200 lbs) load), Top speed:164 km/h / 102 mph(theor. While the horsepower rating would only rank as mediocre for the current crop of four-cylinders, the power level of the 301 was similar to other 5.0-liter V-8 engines of the period and had the advantage of being lighter in weight.Next up the option ladder was the "5.7 liter" V-8 engine. PONTIAC TORQUE/ENGINE SPECIFICATIONS. Have you seen what SD stuff is going for these days?". Base price was reduced by $500 and the standard equipment level was lowered somewhat. One of you should take it home. Like its corporate cousins, the 1973 Pontiac Grand Prix featured a new Could be special order, but doubtful. good enough to rank as the GP's third-highest sales year to date. He had to sell it to make room for a '55 Chevy Nomad that he just bought. The car arrived under less than ideal circumstances. I do have to agree with his assessment of bias ply tires though. onset of new government safety regulations, the roof design combined Violations of copyright will be prosecuted under the fullest extent of the law. Most prominent of these would be small spots at the bottom of the doors, the sills, and under the vinyl top. The reshuffling of standard and optional equipment was exactly what the market demanded, and Pontiac was rewarded with a new Grand Prix production record in a model year when sales of larger cars were generally on the rebound. "Yeah, yeah-we could do that," he said, the idea clearly taking root in his mind. HOT ROD Captures the World of Racing: 1968 in Photos. The very next day, I got together with the owner and looked the Pontiac over more closely. What top speed ? were offered for 1973, the base model and the sportier, upscale SJ. What Makes This 1949 Buick Sacramentos Best Custom of 2023? Sign up for our free daily email and youll never miss another find: Disclosure: This site may receive compensation when you click on some links and make purchases. It sure sounds like he wants this car to find a new home. In fact, the Buick Century Luxus and Regal, as well as the Olds Cutlass Supreme, were A/G-body crossbreeds that grafted the G-body roof onto the 112-inch-wheelbase platform used by A-body coupes. The fine vertical bar treatment used in 1976 was replaced with five thick bars on each side. Chrysler, staunchly dedicated to nothing but full-sized cars, could resist no longer and brought out the Cordoba in 1975. What is next for Imran and his one-of-zero-built 455 Super-Duty '73 GTO? It didnt matter to customers, who gobbled them up like kids scarfing down Halloween candy before school the next day. The Hi-Performance Cars magazine test car was outfitted with the No. All Pontiac Grand Prix 4th-gen. Coupe versions offered for the year 1973 with complete specs, performance and technical data in the catalogue of cars . Total production was at 46,313, up more than 16,000 from 1972 numbers. site (including ProfessCars and automobile-catalog.com) are protected under applicable copyrights, trademarks and other Or subscribe without commenting. Other than the screaming chicken, which would come to help define Trans Am, the most noticeable change to the exterior of the car were the revised bumpers. 1973 Pontiac Grand Prix 4gen Coupe full range specs - Automobile-Catalog Engine Year Info Spark Plug Plug Gap Point Gap Dwell Angle Timing (BTDC) Idel RPM Manual Tran. - click the button below:Tire size:1973 Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio standard and alternative wheel and tire sizes. You do not acquire Clearly, a crowbar had been taken to Pandora's Box and the idea was out there. Suspended by energy absorbers that bounced back from As expected, the finished engine was quite a bit healthier than the production SD-455. After restoring a few '68-'70 GTOs, Imran was looking for a new challenge, and this rare Ascot Silver '73 GTO, originally equipped with the optional 250-horse 455 four-barrel and automatic, was the vehicle of choice. 4) .Specs datasheet with technical data and performance data plus an analysis of the direct market competition of Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio (man. However, the Cutlass did manage to fight its way to best-seller status by 1976 or 77. Drivetrain Build Pontiac's 1974 Grand Prix had one major obstacle right out of the gate: The 1973 oil embargo called by the Organization of Petroleum Exporting The Super Duty intake valve diameter is 2.11 inches and the exhaust valve measured 1.77 inches. From the onset, Imran had envisioned this GTO as the spiritual successor to the prototype that was featured in Hi-Performance Cars magazine and elsewhere. UCC Truck Show 2023: Maximum Performance Under Big-Time Pressure. and more photo, or to compare up to 5 cars side-by-side - click one of the the buttons below: www.automobile-catalog.com The complete catalog of cars since 1945 , 1973 Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio, (click on photo to view enlarged pictures gallery) 1973 Pontiac Firebird - Muscle Car Facts This resulted in a class-action suit against General Motors by irate owners and consumer advocates. without speed governor)The same class cars with similar kind of fuel, power and type of transmission: 1973 Maserati Indy America 4200 North America 4.1-litre / 252 cui191 kW / 260 PS / 256 hp (DIN) 1973 Maserati Indy 4200Europe 4.1-litre / 252 cui191 kW / 260 PS / 256 hp (DIN) 1973 Dodge Charger Coupe 400 V-8 4-bbl. The owner says that he is dropping the insurance soon because nobody drives the car. lots can be done with the motor or leave it stock. For more information on cars, see: The ever-tightening California and federal emission standards contributed to the most confusing engine roster the Grand Prix had ever seen. Continue to the next page for models, prices, and production numbers for 1973-1977 Pontiac Grand Prix. Despite the loss of the 455 and the "which engine is it?" I quickly replaced them with radials and I couldnt believe the difference. While it doesnt have power windows, it is a nicely outfitted car by any standard. Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio (man. Olds FAQ -- 455 CID Engine Detail - ClassicOldsmobile.com On the next page, find out how Pontiac updated the 1976 Grand Prix lineup. There were 1,420 4 speed Trans Ams built in 1973 with the Y code engine which is pretty low until you realize that only 252 X Code (Super Duty) Trans Ams were built in 1973 and only 72 were 4 speed. You could get the 455 in any GPit was standard in the SJthe SD 455s were slated to be offered, but never materialized. 0-60 is 5.3 and thats faster then anything that year, and really is quicker then any muscle car of the previous era. It is implied in the ad, but not stated, that the block, heads, and intake manifolds are correct, and the seller has spent a lot of money repairing various items both in the powertrain and in the braking system. The first digit of the code indicates Manual or Automatic transmission. To be fair, the condition is pretty good compared to other survivors of the era. The Grand Prix for sale here is one of the cars lucky enough to have both the handling package and the big engine on the window sticker. Here is the 1973 Pontiac GTO, the perfect replica of the Hi-Performance Car of the Year. All kinds of cars were newly dolled-up in plush trappings. Manufacturers; Concepts; Supercars; News; Price Guide. The Grand Prix was now divided into three trim levels. 4-speed North America U.S.6.6-litre / 400 cui194 kW / 264 PS / 260 hp (SAE net), The same class cars with similar performance:1973 Pontiac Firebird Trans Am 455-4 V8 4-speed close ratioMarket Competition Review ---->, The most efficient way to navigate through our huge database and compare cars side by side is the interface located on the, Catalogue of 692 car makes & manufacturers, Quick access to automobile-catalog website - type in a browser: a-c.li. To be considered for publication, submit several high-quality color - click the button below:WeightsCurb weight (without a driver):1699 kg / 3746 lbsWeight distribution f/r (%):Dry weight: Shipping weight: Curb weight estimated: Gross vehicle weight rating GVWR: Payload: Payload estimated: Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio (man. If you have never driven on bias ply tires, this may not be a big thing for you. In 1973, a 250-horsepower 455 with 370 foot-pounds of torque surfaced along with a 455 Super Duty, which provided 310 horsepower and 390 foot-pounds of torque. Fun fact: the 3rd generation of the model did not get a perfect launch. Part of the reason for this is that they borrowed the front suspension design of the Firebird and Camaro. matters or any part of this site is strictly prohibited. The round-port heads were enlarged for a consistent cross-sectional area, this change coming from data acquired from the 303 Trans Am and 366 NASCAR programs. 4-speed North America U.S.5.6-litre / 339 cui179 kW / 243 PS / 240 hp (SAE net), 1973 Dodge Charger SE 400 V-8 4-bbl. 4) . This cleverly executed update was a dramatic change from the previous Duesenberg-inspired design, which could be traced back to the 1969 model year. Pontiac Deck Height = 10.2437" Pontiac 301 Deck height - 9.143" Bore Spacing - 4.62" . Light Em Up: Drag Racing, the HOT ROD Power Tour Way. The bore and stroke measured 4x3 inches, respectively, and the pistons and connecting rods were shared with Pontiac's new 151-cubic-inch "Iron Duke" four.The new engine shared the same three-inch main journal diameters as the 350 and 400 V-8s. . Max Brake Horsepower: 335 @ 4800 rpm Max Torque: 480 @ 3600 rpm Stroke: 4.21 Bore: 4.15 Compression: 8.2 Firing Order: 18436572 Unfortunately for that particular car, it was rusted far beyond salvaging, but it did provide the pedals, linkages, shifter, and console. The two cars were driven around the world to show that National's rental fleet, and its Pontiacs in particular, were reliable.) The tires lit up and when they finally hooked, the car was off like white lighting! The cost ($600) is listed in the ad, but it doesnt specifically say that they come with the car. ownership rights to any content, document or other materials viewed through the Although the 301 was based on the tried and true Pontiac V-8, there were enough differences to preclude a great deal of parts interchange.The result of the pound-shaving efforts dropped the overall weight of the 301 significantly. Not only that, the prices of 455 Super-Duty parts have skyrocketed in the last few years, so finding NOS parts for this particular car was very difficult. We were able to limp the proud Poncho to his garage because there was still some oil pressure. 1973 Pontiac Trans Am SD-455 | Hemmings The same class cars with similar kind of fuel, power and type of transmission: 1973 Maserati Indy America 4200 North America 4.1-litre / 252 cui191 kW / 260 PS / 256 hp (DIN), 1973 Maserati Indy 4200Europe 4.1-litre / 252 cui191 kW / 260 PS / 256 hp (DIN), 1973 Dodge Charger Coupe 400 V-8 4-bbl. It didnt have the hood tach but I do know it was an option that year. With that handled, it was off to locate the rest-a correct set of early '73 No. corner of the block and/or head. With that avenue closed to them, automakers turned to luxury as a selling point. Wallace Racing - Pontiac Bolt Torque Values Anniversary models could be considered a good bet for future collectibility, as few are ever seen at car shows. The 1973 Pontiac Trans Am SD-455 was the Hail Mary pass of all Hail Mary passes at a time when the federal government, OPEC and Big Insurance were bent on sacking the practice of bolting powerful V-8 engines into two-door cars that were festooned with fat stripes, racy badges or cartoon characters. Good luck to whoever buys it. You will notice that the engine needs to be . Wish I never sold It. 1973 Engine Codes - Ron's Pontiac Page While the base GP's shipping weight rose "only" 125 pounds from the Quick access to automobile-catalog website - type in a browser: Search automobile-catalog: this database is huge, use the search field below to find here data you are looking for: Pontiac Firebird 2nd generation years, types and editions catalogue (1970-1981), All versions of this 1970-1981 Pontiac Firebird 2nd-gen. Trans Am Coupe submodel:1970 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1971 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1972 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1973 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1974 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1975 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1976 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1977 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1978 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1979 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1980 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions1981 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1970 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1971 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1972 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1973 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1974 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1975 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1976 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1977 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1978 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1979 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1980 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, 1981 Pontiac Firebird 2gen Trans Am Coupe specifications, all versions, Pontiac Bonneville 09gen (Bonneville G) (1982-1986), Pontiac Bonneville Special Concept (1954-1954), Pontiac GTO 1gen (Tempest Le Mans) (1964-1967), Pontiac Le Mans 1gen (Tempest) (1961-1963), Pontiac Le Mans 2gen (Tempest) (1964-1967), Pontiac Le Mans 6gen (import) (1987-1993), Pontiac Montana Thunder Concept (1998-1998), Pontiac Strato Streak Concept (1954-1954), Pontiac Sunfire Speedster Concept (1994-1994), Pontiac Ventura 1gen (Ventura II) (1971-1974). Configuration: 90 V8 Bore x Stroke: 4.3125 x 3.90 Compression Ratio: 10:1 or 10.5:1 (1970) 8.5:1 (1971-1974) 7.9:1 (1975-1976) Firing Order: 1-8-4-3-6-5-7-2 Max Horsepower: 350-370 HP @ 4600 Max Torque: 510 lb-ft @ 2600 We'll talk about certain specs more in-depth when we cover the history of the Buick 455 big block engine. The Y code 455 is what is installed in this car and it developed 250 horsepower from the factory. According to the ProfessCars estimation this Pontiac would accelerate 0-60 mph in 6.8 sec, 0-100 km/h in 7.2 sec and a quarter mile time is 15.3 sec. Pontiac Firebird Trans Am 455 Super Duty specs, performance data For the first time since the model was introduced in 1970, the Esprit was the best selling Firebird. What Makes This 1949 Buick Sacramentos Best Custom of 2023? I have to admit that I am not a fan of these large personal luxury coupes, whether they left the factory as a Chevrolet, Pontiac, Oldsmobile, or Buick. Adding to the confusion was the new Pontiac Grand Am, which was also competing for the performance-oriented portion of the GP market. Just as he hit Third gear (we were doing 100 mph), there was a loud bang and there went the motor. Though sales for every pony car model increased in 1973, most of the models were on their final leg. and is turns freely. Everything You Need To Know About GM's Trio Of 455 Cubic - DrivingLine looks nice and the current owners clearly have spent time in taking pictures and documenting expenditures. It's the fastest Pontiac in both 1973 and 1974 and capable to reach 170 mph with 3.08 ratio as the fastest recorded top . thats why they are selling it. "I also want to thank the members of the Classic GTO Club of Ontario and the guys on the A-Body Site for their assistance with research. Engine Hot: 455: 1973: With Automatic Trans. fiasco, 1977 proved to be the best year ever for Grand Prix sales. Forged rods and pistons replaced the weaker cast units used for years, and the crankshaft, while cast, featured rolled fillets for improved strength and crack resistance. Leaving a sales meeting at my corporate office, I was walking to my car when I looked toward the back of the parking lot and noticed a black Pontiac parked sideways with a For Sale sign in the window. ", Imran's response was a bit disconcerting, as he went pale and stammered a bit. Conventional wisdom has it that the Seventies were dismal years for American cars. The potential of the Super-Duty, even with the low compression, is very impressive. Engine Code Beginning in 1955 a 2-digit engine code was stamped just under the passenger-side cylinder head. the hood featured the familiar "ironing board" sculpting that came to a The automobile-catalog.com website is only for the on-line view using the internet browser. translation, digital conversion and other matters related to the automobile-catalog.com In the early '70s the fuel crisis and rising emission standards ended the muscle car era. It was now 216.6 inches long and the increase was comprised primarily The Grand Prix's base engine was the familiar 400-cubic-inch Pontiac V-8. Pontiac V8 engine - Wikipedia I knew all too well. The 455 V-8 with four-barrel carburetion was down to just 200 horsepower; it remained standard in the SJ. Clean and with the SJ455 seriously, if I wasnt in the Philippines I would scramble to Kentucky and buy this before the seller wakes up to what they have!!!! The Pontiac 455 V8 was The GTO and Firebird Brand's Last "Big Block" There has been a bit of controversy over the years as to whether the actual power losses in Pontiac engines were as dramatic as the ratings indicated. A History Of The Buick 455 V8, GM's Overlooked Big Block V8 ): EU NEDC/Australia ADR82: urban/extra-urban/combined U.S. EPA city/highway (combined): U.S. EPA (after 2008) city/highway: (combined) 10-15 mode: JC08 mode: Emission: To view table with complete performance data and technical specifications (including final drive and gear ratios, powertrain description, dimensions, accelerations chart etc.) Classic & Collectible 1970s Pontiac 1973-1977 Pontiac Grand Prix By: the Auto Editors of Consumer Guide The new generation represented by the 1973 Pontiac Grand Prix had to share some key style and engineering elements with many General Motors intermediates. Stupendous Super Duty - 1973 Pontiac Firebird SD-455 This car had 4 wheel disc breaks(something mainly seen on Vettes and other highend cars), tight gears, large sway bars, a tight suspention(that was firm in front and soft in back.For traction), tight steering, and every trick learned from the 60s muscle cars. Further reduction in oxides of nitrogen emissions came from a lowering of compression from 8.0:1 to 7.6:1 in the 400- and 455-cubic-inch engines. Countries was a major blow to the intermediate car market. The 455 cubic inch engine horsepower rating was surprisingly low . The one in the picture is the only one Ive ever seen but I would love to own one. While Ford would convert the Mustang to a compact car with the Mustang II and would make the Cougar into a mid-sized luxury car, the AMC Javelin, Dodge Challenger and Plymouth Barracuda would all be discontinued in 1974. They were above average for the year, but the Super Duty was bad news for everyone else. 4-speed North America U.S.6.6-litre / 400 cui194 kW / 264 PS / 260 hp (SAE net), 1973 Dodge Charger Rallye Hardtop 340 V-8 4-bbl. Pontiac engineers had addressed the weak points of the Pontiac V-8 engine and corrected them. front fenders. So I will assume it is not the original engine here. It is also stated that the air conditioning system is intact and capable of running, but the conversion to a more modern refrigerant hasnt been completed. Complete transmission data: gear ratios, final drive, etc. It would not necessarily represent a possible production version as it is unknown what changes would have been made, but there is a pretty good record of how the pre-production version was configured. The T-top from the previous year's anniversary edition became a regular Grand Prix option, and the optional "honeycomb" wheels first seen in 1971 were discontinued in favor of a new "snowflake" aluminum wheel design. The rear of the 1973 Grand Prix featured a new Imran also enlisted the help of many members of the A-Body Site (www.abodysite.com), a clearing house of information on '73-'77 LeMans, GTO, Grand Am, and Can Am models, with a few Buicks and Oldsmobiles thrown in for good measure. The majority of the componentry came from a locally sourced '73 four-door Grand Am, one of the 187 four-speed cars built and perhaps 1 of 20 four-doors. The consent submitted will only be used for data processing originating from this website. The 1977 model year would prove to be the Grand Prix's last on the second-generation G-body platform. Timing is everything though, and the time wasn't right for the SD. Four months and thousands of dollars later, I was back on the road again. as possible. Then they would have the opportunity resell the low-mileage used car at a premium. Pontiac V8 Engine Tune Up Specifications. My story begins one sunny summer day back in 1986. Coincidentally, and unknown to Imran at the time he purchased it, the Hi-Performance Cars magazine test car was also Ascot Silver, lending a sort of cosmic permission to the project. My friend said he would help me rebuild the 455 the right way, which meant a 0.030 overbore, a balanced rotating assembly, all the go-fast goodies, and an estimated 500 hp at the crank. Under the Copyright, Designs and Patents Act 1988, the content, organization, graphics, design, compilation, magnetic Any info will be appreciated. Over the last 23 years, I have been married, divorced, raised two kids, transferred to two different states, and have always managed to keep a roof over the Grand Am. without speed governor) Accelerations: 0-80 km/h (sec):5.30-100 km/h (sec):7.20-160 km/h (sec):17.60-200 km/h (sec):0-300 km/h (sec): 0-50 mph (sec):5.40-60 mph (sec):6.80-100 mph (sec):17.90-150 mph (sec):0-200 mph (sec):Drag times: 0- 1/4mile (sec):15.30- 1km (sec):27.9 Full performance data, accelerations chart, acceleration on gears, speed range on gears, overtaking factors etc:1973 Pontiac Firebird Trans Am 455-4 V8 4-speed close ratio Detailed Accelerations, Performance Review Fuel consumption (mileage)extra-urban (up to 62mph/100km/h) / city / highway (up to 87mph/140km/h) / average combined:l/100km:17.5-21 / 25.2-30.2 / 20.5-24.6 / 22.4mpg (imp. No need to cringe: Precious few 455s, save for factory H.O. dimensions and mechanical details for the 1973 Pontiac Catalina. Muscle Car Specifications Performance Model 1973 Pontiac GTO Engine Used 455ci/250hp Zero to Sixty 7.9 sec Quarter Mile 15.3 sec The year 1973 was very well the end of the once great GTO. RULES: No profanity, politics, or personal attacks. In keeping with tradition though, Of a car that defied to lame,turned into a super car of the day, and was quickest new car in the world. The overall dimensions are 4879 mm / 192.1 in of length, 1864 mm / 73.4 in of width (without mirrors) and 1280 mm / 50.4 in of height. Instead of coming out for 1972, the all-new GP was held over to 1973. Correct me if I am wrong here; J Model 400ci/230hp and SJ Model 455ci/250hp Since this is a straight J model (lowest model of the series) would it not be originally fitted with a 400ci. Likewise, the grille was an all-new "waterfall" design that folded over the top of the header panel. Reply 2k 2 5 replies hostboy 1y ago 290hp really is 350s-360s easy. 1974 Pontiac Firebird Trans Am 455 Super Duty specs, performance data, top speed, engine specifications, pictures. The worm under that vinyl top is really bad. Not surprisingly, sales of the Grand Prix dropped by almost 60,000 in 1978 and the downward slide in sales would accelerate. It was replaced with a cast-iron version for the production Formulas and Trans Ams, and the castings on hand were put into the parts network. How can you not like a car like this? Performance Reproduction of part or all of the contents of this web-site in any form is prohibited and may not be recopied and shared with a third party. Tampa, FL 33619. or christopher.phillip@sorc.com. Per the Pontiac Service Bulletins of the time, the galley plug near the distributor had a 0.030 inch drilled in it to lubricate the distributor gear. (The Model J designation used previously on base models was dropped.) The Pontiac Firebird is an American automobile that was built and produced by Pontiac from the 1967 to 2002 model years. Pontiac first equipped the GTO with a 455 cubic inch V8 engine in 1970. Ready To Drive: 1973 Dodge Charger Rallye 340. The Stillborn Super-Duty GTO Total production was at 14,096, which trailed the Esprit model by more than 3,000.

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