Wedge was not your average American muscle car. Under the hood was a mighty Chrysler 413-cubic-inch V8 a powerful statement of car building excellence that could give the maximum results when racing on the quarter-mile track. In 1962, Chrysler launched a new line of performance Dodge and Plymouth vehicles for muscle car fans to get in on the action of high speed, bare-bones racing at full speed; the Dodge Dart 413 Max Wedge is one of the best.

Chrysler’s Maximum Performance Wedge cars kept getting bigger with 426-c.i. Engines, updated mechanicals and light-weighted racecars. Encompassing models from the Dodge Dart and Plymouth Belvedere, to the Dodge Polara and Plymouth Savoy, these cars earned Chrysler a reputation in the annals of professional drag racing. Add Stage III upgrades to the mix, and you had an angry vehicle that raised the bar for speed and economy until the arrival of the 426 HEMI commenced Chrysler’s latest chapter of American excellence. In the end, it’s undeniable that the Chrysler factory cars’ designs, drivetrains, powerful V8 engines, and performance-first configurations will forever make this Chrysler legendary.

1. The 1962 Dodge Dart Max Wedge Legacy

Any real piece of American drag racing history that emerges on Bring a Trailer causes automotive fans to sit up and take notice. Chrysler’s Maximum Performance Wedge engines weren’t intended for life on the boulevard or comfortable daily driving. They were out-and-out specialised powertrains, introduced to Chrysler’s lineup in 1962 and utilised for all-out straight-line acceleration over the quarter-mile. Chrysler employed high-performance V8s within stripped back factory automobiles without any consideration for comfort and ride quality in order to attain maximum speed. This resulted in a fleet of street legal quarter-mile vehicles capable of fantastic acceleration, straight out of the showroom. This 1962 Dodge Dart 413 Max Wedge is one of the first factory-backed performance vehicles to include this powerful engine in its lineup, and was used as a purpose-built drag racing machine to be offered directly through a dealer to a purchaser for the first time.

What Made the Dodge Dart Special:

• Introduced during 1962
• Powered by the 413 Max Wedge
• Built for Super Stock racing
• Prioritised acceleration over comfort
• Available directly through dealerships

The mechanical bit of a 1962 Dodge Dart 413 Max Wedge revolved around high flow cylinder heads and an unusual cross-ram intake topped by a pair of Carter AFB carbs. The intake arrangement was loud, proud, and on the aggressive side, with the additional airflow and fuel making it possible for the engine to produce massive power higher up in the rpm band. Depending on the original factory setup, output was between 410-420 horsepower. The range-topping version was even more dangerous with 13.5.1 compression, which necessitated high-octane racing fuel. Dodge dumped weight wherever possible, so light-weight sheet metal and stripped interior components all helped increase the power-to-weight ratio and make the Dart particularly good for running in straight lines. With some skill, a factory Dart Max Wedge could get to the end of the quarter-mile strip in less than 13 seconds straight from the factory.

2. Inside the Powerful 413 Max Wedge Engine

“Maximum Performance” Wedge engine The 413 was the first in a series of Chrysler performance engines known as “Maximum Performance Wedge”. The car was built to maximize airflow, fuel and engine performance for improved performance in the quarter mile, not the comfort of everyday driving. The 413 Max Wedge engine is a core part of this performance strategy and used in factory cars built specifically for maximum performance. The high-flow cylinder heads were combined with a unique cross-ram intake manifold designed to support the high-revving performance of the engine; dual Carter AFB carbs powered the engine’s high-flow cylinders. The 413 Max Wedge also helped lay the groundwork for the 1962 Dodge Dart, which included a factory-assembled performance package capable of competing in the Super Stock class.

What Made the 413 Max Wedge Special:

• High-flow cylinder head design
• Distinctive cross-ram intake manifold
• Dual Carter AFB carburettors
• Up to 420 horsepower available
• High-compression racing-focused configuration

Factory setting helped unlock the maximum power from the engine, with the 413 Max Wedge putting out around 410-420bhp in its earliest applications. However, the best specification engine used a compression ratio of 13.5.1 requiring high-octane racing fuel highlighting its competition focus rather than gentle, everyday driving. Chrysler used its know-how for these specialised engines to good effect, with cars stripped of superfluous interior equipment and excessive weight to improve acceleration. Chrysler’s full-house approach to the 413 Max Wedge delivered astonishing quarter-mile performance, not simply due to the availability of power but because of the symbiotic working relationship between engine and vehicle package. The 413 Max Wedge was not just a powerful engine in a standard car but formed an integral part of a technically sophisticated factory approach to American drag racing.

3. The 1963 Plymouth Belvedere Max Wedge Performance

Like the Dart, the 1963 Plymouth Belvedere 413 Max Wedge had much of its mechanical package under the sheet metal and a factory shot at the drags for Plymouth faithful. The 413 Super Stock Max Wedge engine in the Belvedere made a competition-ready quarter-mile contender from the factory. It was the quest for pure power that drew those looking to compete in factory-supported drags to the Max Wedge options, but it didn’t hurt that they were also interested in the stripped-down minimalism that went along with the performance focus. For example, instead of specifying a ride with weight added, shoppers could order aluminium components for the front end or have the car built without a radio and heater. That approach was consistent with the original version of the Dodge Dart Max Wedge, which emphasized strength and performance over comfort.

1963 Belvedere Highlights and Performance Features:

• Shared the 413 Max Wedge
• Built for quarter-mile competition
• Offered aluminium front-end components
• Radio deletion reduced unnecessary weight
• Heater deletion supported weight savings

Mechanically, the Belvedere kept the same 413 Super Stock Max Wedge technical specs outlined for this set of early Mopar performance cars. Since its light weight options, the car was especially attractive to drivers who wanted to assemble a drag car without starting out with a slow, street-oriented version. Lightweight aluminium front-end components and the performance part elimination of non-essentials like the radio and heater helped keep the car light. For a factory made drag car, it showed that the question of factory performance was about more than simply bolting a stout motor in a car, since how the rest of the car was assembled impacted the acceleration over short straight lines as well. For that reason, the 1963 Plymouth Belvedere became one of the key instances of Chrysler’s offer of factory high performance, alongside of the Dodge Dart and the road racing Chrysler 300.

4. The 1962 Plymouth Sport Fury Max Wedge

Offering up another route to Chrysler’s groundbreaking 1960s Maximum Performance Wedge engineering was the 1962 Plymouth Sport Fury, a car that in its 413 Max Wedge guise not only offered one of the aforementioned many variations, but with extra trim and a bit more equipment than the basic Dodge Dart or Plymouth Belvedere but with an engine that turned everything around. In the natural evolution of things, the 1962 Plymouth Sport Fury with the 413 Max Wedge engine was the worsted gentleman’s expression of things, combining the extra equipment with the slight touch of sedatism that went with a car also having a 410-420 horsepower engine underneath its nose. Typically mated to a heavy-duty 727 automatic transmission, the 413 Max Wedge looked a gem from the outside, but got down and serious underneath its more upscale wearing.

Sport Fury Performance Features Worth Knowing:

• Introduced in the 1962 lineup
• Offered the 413 Max Wedge
• Produced around 410-420 horsepower
• Typically used a 727 automatic
• Combined trim with serious performance

However, the Sport Fury did show that the Max Wedge recipe could be applied to drivers who wanted something more than a completely stripped-down race car. While the added trim still set it apart from the most basic models, the machinery underneath was still geared toward racing. Many of the earliest racers opted to convert their new cars to their specific needs by removing interior parts or stripping out more weight. The Sport Fury offered them a starting point that also allowed them to build on the factory’s performance programme according to their specific needs and priorities. The 1962 Sport Fury offered something else for the high performance programme a larger, more luxurious model that also retained the core concept of the factory-backed drag cars put down the quarter-mile in a hurry, using a car you could buy at the dealership.

5. Chrysler’s Max Wedge Engineering and Racing Philosophy

There was nothing frivolous about the engineering concept of the 1962 and 1963 Max Wedge cars. Chrysler’s game was high-RPM breathing, structural efficiency and straight line performance, not luxury stuff or a smooth ride. Every engineering detail was geared towards maximum power and maximum response on the run off the line. High-flow cylinder heads teamed with cross-ram induction to optimise breathing at higher rpm levels. Lightened body pieces and stripped down interiors further helped the package to make maximum use of the available power. The result was quarter-mile vehicles which could be registered for road use and were in no way common family sedans. The Dodge Dart and Plymouth Belvedere embodied the philosophy of building performance into a vehicle rather than leaving the job of complete development to the individual racers. Chrysler’s ready acceptance of the concept opened the way for Mopar to become a major name in drag racing in the early 1960s.

The Engineering Priorities Behind Max Wedge Cars:

• High-RPM engine breathing
• Lightweight body construction
• Minimal unnecessary interior equipment
• Maximum straight-line acceleration
• Factory-built drag racing capability

The Max Wedge programme set out to fuse engine development, lightweighting and factory performance options into one tightly integrated package. The heavy-duty head and cross-ram induction systems provided enough flow to meet the requirements of a high-horsepower engine, while lightweight doors, hood and trim and the elimination of unwanted luxury features meant the powertrain spent less time pulling around unwanted weight. Such measures made the cars ideally suited to competition in a quarter-mile drag race. There was nothing about enhancing on-road ride comfort or handling in these cars, the focus was on producing as much horsepower as possible and delivering it quickly to the back wheels to both launch hard off the line and continue to perform under drag racing conditions. In doing so, Chrysler provided customers with cars that were race-ready straight from the factory; the early Max Wedge cars proved the value of factory efforts at the strip and laid a solid foundation for later factory performance developments.

6. The 1963 Dodge Polara 426 Max Wedge

Another 413 was the basis of Chrysler’s first bevy of factory-built performance cars. It was more than doubling in size to 426 cubic inches in 1963 with then-current Maximum Performance Wedge architecture, pumping up the ante for drag racing and adding another Chrysler factory performance line to the market. With 425 hp nominal maximum output officially and 470 plus at the flywheel in torque depending on the compression ratio chosen, the new engine quickly became the heart of the 1963 Dodge Polara’s line of production drag racing cars. The latter had special factory race packages offered, such as body parts and drivetrain modifications. The 426 Max Wedge stayed true to the company’s long-held manufacturing strategy of both combining genuine performance and speed out of a fairly priced production line engine and incorporating standard equipment features that one would find more familiar in sedans and family cars.

1963 Dodge Polara Performance Highlights:

• Engine displacement reached 426 cubic inches
• Official output reached 425 horsepower
• Torque exceeded 470 lb-ft
• Lightweight factory race packages available
• Strengthened drivetrains supported performance

The 1963 Dodge Polara showed that Chrysler knew how to evolve the basic formula and give the powertrain even greater potential. With a larger block and the performance department’s race-ready factory packages, the 426 Max Wedge was just the ticket to prepare the car for punishing conditions on the drag strip. Light-weight parts cut weight where it was unnecessary, and strengthened drivetrain parts handled the power from the engine. These weren’t just road cars with the horsepower turned up, but carefully prepared cars designed for acceleration. The inclusion of the Polara in this program demonstrated the role that factory drag racing was beginning to play in the Chrysler performance program. As the Max Wedge design was refined, the performance engineers kept applying their unique solutions to other models, building them for racers on the same mechanical plan and giving the Max Wedge design a more potent phase.

7. The 1963 Plymouth Savoy 426 Max Wedge

Plymouth followed Chrysler and introduced the factory 426 Max Wedge version of the 1963 Savoy. With its pragmatic appearance, the Savoy’s mechanical package was focused on achieving a specific aim to rival the NHRA for production car championship wins by factory builds. The car was fitted with the distinctive cross-ram induction system and twin 750 cfm Carter carbs seen on all previous high performance 413s. The factory also supplied the Savoy with a wide range of weight-reduction opportunities, such as a factory aluminium bonnet, aluminium front wings and Lexan-style side windows. While all of these components lightened the car, chassis-side weight was also reduced to make the Savoy a lightweight contender. The specification showed how Chrysler’s factory performance programme involved much more than just added engine power by providing induction technology, customised components and a stripped-down body shell to optimise quarter-mile running.

Plymouth Savoy Features That Supported Drag Racing:

• Powered by the 426 Max Wedge
• Used dual 750 cfm carburettors
• Featured signature cross-ram induction
• Offered aluminium bonnet and wings
• Could achieve 11-second quarter-miles

If properly tuned, these light Savoys could perform an 11 second, quarter-mile, using standard-production parts from the factory. Combining the performance of the engine and the reduction of weight in the model would make it very attractive for racers who wanted to have a competitive car from the start. Use of aluminium body panels meant this effort would sacrifice additional weight, and the specialized induction system would give the engine an extra boost. This was an example of Chrysler offering a solution to drivers who wanted to race rather than spend hours between races converting a station wagon or a family car. The modest look of the Savoy was a little misleading, as the 1963 Plymouth Savoy’s performance package was definitely a part of Chrysler’s larger goal of establishing itself as a leader in American drag-racing circles in the early 1960s. The 1963 model would join the Dodge Polara and the 413-based muscle cars that would precede it in the effort to bring the Max Wedge formula to multiple production cars without sacrificing its key elements of power, speed, and weight reduction.

8. The 1963 Dodge 440 Performance Package

For those seeking performance without a lot of fuss the 1963 Dodge 440 was an alternative. The more fully optioned versions of the Dodge and the specialised race variants generally drew the most attention, but the Dodge 440 was an attractive proposition for the cost conscious race driver, as a suitable basis for a weekend winner. The mechanical specification consisted of high rise cylinder heads and solid lifters, with a character that revealed itself best at higher revs. The combination was considered particularly lively and vocal in the higher reaches of the 4000rpm mark. The Dodge 440 was just one of a range which offered something for all budgets as well as the lightweight variants there were models which took a more conventional approach by providing a more manageable starting point from which to develop your own race winning configuration. This diversity expanded the potential market for Chrysler’s performance factory effort in the early 1960s.

Dodge 440 Features for Performance Enthusiasts:

• Budget-minded performance platform
• Designed for weekend racing
• Featured high-rise cylinder heads
• Used solid-lifter engine components
• Thrived above 4,000 rpm

The position of the Dodge 440 in the Max Wedge story illustrates how Chrysler’s impact on drag racing extended well beyond the handful of factory-built cars that were the ultimate in performance cars. A driver who was going to start racing could choose an unadorned platform, and concentrate on the mechanical features that concerned him the most. High-rise heads and solid lifters were on the options list, and the engine was clearly geared for the smooth, high-revving characteristics that one might expect from an engine type best suited to drag racing. This approach to offering a handful of choices for just the right packaging was also part of the general engineering philosophy of the time, giving good performance, not a lot of weight and mindful of the dragstrip. The Dodge 440 provided a lower-cost alternative to the more specialized and lighter weight Savoy, and the larger engine Polara, and it was part of the spectrum of cars that illustrated how wide-ranging Chrysler’s drag racing program was in the transition between the first generation of 413-based Max Wedge cars and the 426.

9. The 1964 Max Wedge Stage III Upgrades

By 1964 the Max Wedge programme had reached its final technical high point when the Stage III developments were announced. While the car was still being billed as producing 425 bhp, the engineering advances were more aimed at that force feeding the engine into the proper place with the right components in the right calibration to deliver the power more consistently and under racing conditions. Changes included revised cylinder heads, stronger piston rods and calibrated carburetors, all aimed at optimising the airflow and combustion cycles rather than increasing the power advertised number. The new and improved Max Wedge could be had in 1964 Dodge 330 guise, which provided a much lighter and more structurally basic platform that complemented the Max Wedge concept, along with a deliberately aggressive 4.56 rear axle ratio and Chrysler’s pushbutton Torque Flite automatic transmission, which led to a highly refined package for maximized jump.

Stage III Engineering Improvements Worth Knowing:

• Revised cylinder head design
• Stronger connecting rods
• Optimised carburettor calibration
• Aggressive 4.56 rear gearing
• Pushbutton TorqueFlite automatic transmission

The significance of the 1964 Stage III upgrades was that they addressed the stresses imposed by multiple drag strip passes. Modified heads continued to meet the programme’s desire to improve airflow, while more durable connecting rods had to withstand engine stress on the dyno. Carburattor calibration was enhanced to fine-tune the fuel/air mixture. Externally, power remained at the advertised 425hp, but these upgrades delivered a more durable powertrain along with consistent operation. Unlike the previous year’s expresssively aggressive rear axle ratio matched with its equally aggressive 426ci engine, the 1964 Dodge 330 came with an appropriate gear ratio for drag racing and a pushbutton Torque Flite automatic transmission these changes rendered a quarter-mile horsepower machine quintessential to the factory performance ethos. The 1964 Stage III model became the last of the series to use the Max Wedge as its engine package before the 1965 model year heralded the coming of the 426ci HEMI.

10. The Final Plymouth Max Wedge Racing Models

Plymouth’s 1964 cars wrapped up a brutal Max Wedge phase before the arrival of the 426 HEMI. The 1964 Plymouth Fury 426 Stage III Max Wedge used brutal gearing and a truckload of torque to offset its slightly larger overall size. With slicks fitted, it could run a very low 12-second quarter-mile with just a little bit of tuning. The lighter weight 1964 Plymouth Belvedere was another contender, utilising a bellypans and optimized chassis set-up, factory headers and enormous carburettors and gears to match. Some of these factory prepped machines were so tied to competition that they skipped private sales and went straight from the factory to a professional drag team. These cars showed how the new engineering approach at Chrysler had taken shape by the time the programme was winding down, with extruded engine parts, race-bred chassis set-up, and by far the most serious quarter-mile blocks.

The Final Max Wedge Models and Their Highlights:

• 1964 Plymouth Fury Stage III
• Quarter-mile times in the low 12s
• 1964 Plymouth Belvedere race package
• Factory headers and large carburettors
• Some cars went straight to racing teams

The 1963-64 Dodge and Plymouth models equipped with the 426 were the end of an era known as the maximum-wedge phase. 1963 Dodge Custom 880 with 426 Max Wedge demonstrated the engine’s versatility. This one-of-a-kind experiment was installed in a full-size sedan and demonstrated how a heavy-duty vehicle could be propelled at a reasonably high rate of speed thanks to the torque of this major-motors addition. The Custom 880 exemplified the bold confidence of 1960s automotive innovation, which focused on the idea of using high-tech solutions to handle counterintuitive challenges. All along its line, the Max Wedge vehicles helped cement Chrysler’s reputation as a race powerhouse long before the muscle car craze set in. The presence of a low-production 1962 Dodge Dart 413 Max Wedge listed on Bring a Trailer is a reminder of this influential time. These factory-built race vehicles helped to define the early years of American drag racing and became an integral part of Chrysler’s high-performance legacy.