The real story never came out, but some combination of corporate politics ("You don’t need another cylinder head – mine will work just fine") and additional program investment killed the program. Yenko had his staff rent a racetrack but at the last minute, he decided not to go through with the testing. Dec 14, 2020. And let's face it, the car looked hot. Only three components activate the valve rather than the usual seven of a typical push rod system. The front suspension is classic General Motors short and long-arm. The cast iron cylinder head was chosen for low cost and structural integrity. Mar 12, 2020. A similar system secured the Cosworth engine EPA certificate in 1975. The steering box and linkage are located ahead of the front wheel centerline. In May 1974 under a revised 50,000 mi engine warranty for 1971–1975 Vegas, Chevrolet informed the 1.3 million owners that it would repair, at its own expense, any engines damaged by overheating. This was a brutally short time to design and engineer a new car, especially one that borrowed almost nothing from any other. He presented the program to GM's president in 1967. 1978–1979 Chevy Monza and Pontiac Sunbird wagons used the Vega Kammback wagon body with I-4 and V6 engines supplied by Pontiac and Buick. Like any car, the Vega has its good points and bad. The result was a vehicle body virtually free of squeaks, rattles, and vibrations. This page was last updated: 22-Dec 19:50. "...It is appropriate that the final choice was a car that reflects Detroit's timely response to the people's needs instead of a copy writer's idea of what they should need. Positraction was also available. 3) , model year 1974, version for North America U.S. (up to September) manufactured by Chevrolet (USA) in USA. It is painted in a ppg dark and dramatic plum pur 1974 Chevrolet Vega Ive owned my Vega for a couple of years now. Although non-a/c cars held only 6 quarts and had a tiny two-tube, 12"x12" radiator, when topped off the cooling system was adequate. ", Super Chevy magazine included the 1975-'76 Cosworth Vega in their 2011 list of the "100 Most Significant Chevys Of All Time.". 1974 vega pro street. Despite the continuous development program and efforts to improve the car's image, Chevrolet cancelled the Vega and its aluminum engine at the end of the 1977 model year. 1976 Vegas on the 60,000 miles in 60 days Durability Run. For the inside, a new mini-console for cars equipped with automatic transmission and a new European-style simulated leather boot came with the optional 4-speed transmission. Everything about it was cutting-edge: it featured a lightweight aluminum engine block and sporty European suspension tuning, and the factory where it was built was the fastest and most automated in the world. But rust damage also affected the rocker panels, the door bottoms, the area beneath the windshield, and the primary body structure above the rockers. Air Conditioning option added; predicted production was 10%, actually ran at 45%. It features improved coolant pathways for the aluminum-block, a redesigned cylinder head incorporating quieter hydraulic valve lifters (replacing the mechanical lifters), longer life valve stem seals, and a redesigned water pump, head gasket, and thermostat. Sales peaked for the 1974 model year with 460,374 produced. He felt that coolant could simply be passed through the heater core, with outside air ducted through the core and exhausted under the car to provide auxiliary cooling. Carpeting and headliners added for hatchback and station wagon. In addition, there was also a rotor tip-seal problem in the cast-iron configuration, especially after 15,000 miles. As I said earlier, the Vega has good craftsmanship, without the faults of the imports. 6,500 were built May to July. Something went wrong. And since all other cars suffered the same inflationary rise, less expensive cars were in greater demand than those with higher prices which helped Vegas sell. It was a corporate car, not a divisional one. Derion pointed out, too, that a rust-prone gap existed between the front fenders and the cowl vent. 1974 Chevrolet Vega Specifications and Photos 0-100/h, 0-60mph, dimensions, weight, photos and specs Compare with: select: Technical Information / Specifications: Model: 1974 Chevrolet Vega Category: Engine Position: Front: Engine: 2285 ccm (138,73 cubic inches) Engine type: Inline, 4 cyl: Max. The Chevrolet XP-898 concept car is a front engine, rear wheel drive design based on the Chevrolet Vega using many of its components including the aluminum-block 140 cubic inch inline-four engine but with a "stillborn" Chevrolet prototype crossflow aluminum cylinder head with single centrally-mounted overhead camshaft (OHC) and roller rocker arms operating intake valves on one side and exhaust valves on the other, remarkably similar to the Ferrari V12 cylinder head design of that period; The vehicle has a 90 inch wheelbase with an overall length of 166 inches. Even at 19 seconds  the GT fills you with as much adrenaline as some of its faster big brothers." ClassicCars.com has been recognized as one of the fastest-growing private companies in the United States, successfully making the Inc. 5000 list in both 2015, 2016, 2017 and 2018. 1974 Chevy Vega - Darth Vega. "1976-'77 Dura-built engines had redesigned seals that reduced oil consumption by fifty percent. Conservative estimates had placed the cost of bringing the Vega from drawing board to production reality at a staggering $200 million (a billion in today's money) compared to about $5 million for the AMC Gremlin.Motor Trend awarded the Vega 1971 "Car of the Year" after a 4-day ride and drive that saw 10 of Detroit's finest put through a 1000 mile wringer. ", notes: 1972–1977 hp / torque ratings are SAE Net. The 1973-'74 Oil embargo, perhaps more than any other factor, boosted the Vega's fortunes.". As the engine development progressed at Chevrolet, it became known (in closed offices) as "The world's tallest, smallest engine" due to the tall cylinder head. Cylinder head inlet and exhaust ports were configured for an increase and better balance of air flow. Nos Gm 1971-1975 Chevrolet Vega Cosworth Wiper Arm Transmissions 4960374 4960376. Take your favorite fandoms with you and never miss a beat. Motor Trend September 1974, editor John Lamm said, "Incidently, because present problems with overheating and warpage of the Vega engines have been caused by owners driving around with too little coolant, all Vegas will have an instrument panel light warning when coolant is down one quart.". Modular Construction Design reduced the number of joints and sealing operations resulting in stronger, tighter bodies, effectively contributed to vehicle quality and made possible a very high rate of production. It is generally acknowledged that this organizational arrangement made it possible to put out a totally new car in such a short time. When first introduced, GM Board Chairman James Roche stated that there would be no major changes in the Vega for four years. April, 1969 – Gauge-pack cluster option added, HD suspension and wide tire option added, adjustable seat back option added; ran at 45% production, bumpers restyled, lower valance panels added, swing-out quarter window option added; ran at 10% production. L-11 engine standard on 1977 models, XP-898 concept prototype Vega L-10 engine with "crossflow" aluminum head. Represents the "C (medium cars, compact)" market segment. The large bore and long stroke design provide good torque and lower rpm operation for reduced wear. He retired the same month. Fuel economy competitive with the foreign mini cars. A three-speed Turbo-hydramatic automatic transmission option was added, joining the two-speed Powerglide. Starting in 1976, extensive anti-rust improvements on the Vega's body included galvanized steel fenders and rocker panels and "four layer" fender protection with zinc coated and primed inner fenders and wheelwell protective mastic, zinc-rich pre-prime coating on inner doors, expandable sealer installed between rear quarter panel and wheel housing panel, and corrosion resistant header panel, grill and headlamp housings. Chevy Vega 1974, Custom Cabin Heat and Sound Deadener Kit by Zirgo®. The car came out for the 1971 model year. The Pontiac Sunbird Safari Wagon produced for the 1978–1979 model years used the Vega wagon body style. The lower control arm bushings were actually larger than those of the 1970 Camaro. 1976-'77 Dura-Built 140 engines had improved engine block coolant pathways, longer life valve stem seals, redesigned head gasket, water pump, and thermostat, and a five-year/60,000 mi warranty.Despite its lack of success with the Vega, the liner-less aluminum/silicon engine technology that GM and Reynolds developed turned out to be sound. The granny test would have taken time, which the Vega's development engineers didn't really have. Ed Cole, who had been very personally involved with the design of the 1955 Chevrolet V8 as chief engineer at Chevrolet, was equally involved with the Vega engine as GM president, and was a frequent visitor on Saturdays to the engineering staff engine drafting room, reviewing the design and giving direction for changes. The earliest version of the engine was tested in a Fiat 124 sedan. 0 bids. (corrected by installing additional new bracket. GM RC2-206 Wankels were installed in 1973 Vegas for cold weather testing performed in Canada,Motor Trend, in a 1973 article "The '75 Vega Rotary" said: "GM saw the rotary engine's future as probably much greater than they do today...mileage will be in the 16-18 mpg range. All Vega models have a 97.0-inch wheelbase and a 65.4-inch width. Fisher Body Division was very proud of its Elpo primering process, which should have prevented rust, but didn't. It out-performs any car in its price class in accelerating. Simplicity for easy maintenance. The cylinder bores were rough and finish-honed conventionally to a 7-microinch finish then etched by a new (then) electro-chemical process. Corporate management made the decisions to enter the small car market and to develop the car itself. COPO Camaro Drag Racers Make the Straight Line Spotlight. GM chose Cole's version over proposals from Chevrolet and Pontiac, and gave the car to Chevrolet to sell. The Vega's styling was judged conservative, clean-lined and timeless. The previous owner passed away and it has been sitting since. The front end was redesigned three years later to cosmetically accommodate the larger (aluminum) 5-mph bumpers required for the revised 1974 pendulum bumper impact standard. In January plastic front fender liners were added after thousands of sets of fenders were replaced under warranty on 1971-1974 models. Retired 1972 drag car. Sport stripes in black or white were available.Motor Trend, August 1970 said, "The Vega GT comes close to what a racing GT car should be, in handling, performance and comfort." Vega production at Lordstown was projected at 100 cars an hour from the beginning: one vehicle every 36 seconds. Piston plating was done on a 46 operation automatic line. Motor Trend August 1970, Vega 2300 — Chevrolet's fantastic new mini: the point to which all things are coming.— John DeLorean, GM vice president and Chevrolet general manager discussed the car, touting its quality of assembly and its handling capabilities. The majority were built in the United States at Lordstown Assembly in Lordstown, Ohio. ", The Vega was popular with the automotive press, winning awards and praise for its innovative engineering, timeless styling, and sports car-like handling. All four Vega models share the same hood, fenders, floor pan, door lower panels, rocker panels, engine compartment, and front end. GTs were now offered in two appearence variations - the new one featured a blacked-out theme to exterior moldings (lower moldings deleted), black sport mirrors and wheels, bold Vega GT lettered side striping and rear Vega GT transfer id. They won't be turning them off much during the next 58 days except for rest and food stops, refueling and maintenance. So, the Chevrolet Vega 2300 is Motor Trend's 1971 Car of the Year by way of engineering excellence, packaging, styling and timeliness. 8. ", In a road test of the wagon, MT editor Jim Brokaw said, "Just as in the base sedan and the GT coupe, the key word is comfort. This was nearly twice the normal volume and by far the fastest rate in the world. This was in 1975, and I bought it used for $2,100 from a local dealer. Emission control was now by exhaust gas recirculation. The Cosworth was offered in eight additional exterior and two additional interior colors mid-year, but was canceled in July after only 1,446 were built for the 1976 model year. Find the best deals for Used Cars. He requested provisions for V8 engine, a full-line of body styles and consideration of a two-passenger coupe version. The deluxe seats in the GT car are extraordinarily comfortable. For more recent exchange rates, please use the. 1977 models featured a new vertical design grill and aluminum wheels were a new option. Many service operations were intentionally designed so that they were able to be performed by Vega owners. Lateral acceleration capacity is .90g for the standard suspension, and .93g for the RPO F-41 suspension. The all-new Vega was powered by a four-cylinder engine, but what could Yenko undertake and keep his performance legacy alive while retaining the Vega's four-cylinder engine to appease the insurance companies. This was a significant departure from the leaf spring suspension used in the Camaro and Chevy II Nova. The Torque-Drive transmission was discontinued. If a test driver at the proving grounds didn't ever check one of those engines and let it run out of coolant...if it burned up, he'd get fired. But apparently no one thought to run granny tests anyway. Prophetic words indeed. Kneisler confessed, "It astonishes me that not one of us thought about seeing what would happen if we ran out of water. Weight distribution is quoted at 53.2% front and 46.%8 rear. One of the cars went on display in the 60,000 miles in 60 days exhibit at the 1976 New York International Auto Show. Monza wagon models included, as standard, the 151 cu in I-4. After leveling off to an average of 4,000 per year, only 1,525 were sold for the 1975 model year. "Inside all three Vegas we were impressed with the comfort. The modelers were put to work on large, round lamps and DeLorean and Zollie came back later that day and approved the change. And the test system back then didn't let things fail. View cart for details. Chevy also offered the Monza 'S' for 1978 as a Monza price leader, using the Vega hatchback body. 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