1970 Dodge Challenger R/T SE Hemi Article

This is the second in a series of articles on “Cars we have photographed and loved.”

In 1970, if you hankered for a luxurious muscle car built to your specifications, Dodge had a solution, the Challenger. Today, if you want a 70s muscle car that is rare (or even unique) and one that you can restore or upgrade, a Challenger can fulfill your dreams.

Download a PDF-version of this article.

Collectors have taken note. A perfectly restored, numbers-matching Challenger R/T Hemi can sell for a quarter million dollars.

Where does the Challenger fit in?

The 1970 Challenger was Dodge’s premier entry into the pony-car segment led by Mustang, Camaro, and Barracuda. But the Challenger was marketed as a more luxurious model, like the Mercury Cougar and the Pontiac Firebird. Or, to oversimplify a bit:

Though similar, the Challenger and Barracuda were distinct models. True, they were both built on the Chrysler E-Body platform, they shared drivetrain components and some sheet metal, and they had a similar profile and proportions. But the Challenger was somewhat larger, with a 2-inch longer wheelbase, and a more luxurious interior than the Plymouth Barracuda. Sisters perhaps; twins naaah.

How are Challenger models related?

The Challenger branch of the Chrysler family tree is more complex that those on some long-running soap operas. Let’s see if we can sort it out.

The base model Challenger was available as a 2-door hardtop and convertible. Only 2-door models existed, so I’ll drop that part of the name. The base hardtop could be combined with the performance R/T option, the luxury SE option, or both. That gives us four Challenger hardtop models:

(If you are curious about what the SE and R/T actually added, hang on; we’ll look at them in a bit.)

The base convertible could have the R/T option, but not the SE.

Later in 1970, Dodge introduced two specialty models: the race-qualifying Challenger T/A and the economical Deputy.

To recap, official Challenger models included:

  • Challenger two-door hardtop.
  • Challenger R/T two-door hardtop.
  • Challenger SE two-door hardtop.
  • Challenger R/T SE two-door hardtop.
  • Challenger convertible.
  • Challenger R/T convertible.
  • Challenger T/A two-door hardtop.
  • Challenger Deputy two-door hardtop.

Now we’ll look at how these models differed.

R/T Option

The R/T option added performance features to the base hardtop or convertible. R/T stood for “Road and Track.” It was required if you wanted the most powerful engines, such as the 426 Hemi.

The R/T option upped the base engine to the 330 horsepower 383 and beefed up the suspension and brakes. Over the engine, a Power Bulge hood added dual scoops and was held down with hood pins. The interior gained high-back vinyl bucket seats and the Rallye gauges, including a 150 mph speedometer and an 8000 rpm tach. R/T buyers could choose longitudinal stripes, a “Bumblebee” stripe around the tail, or no stripes at all. R/T badges were mounted on the side front fenders and on the grill.

SE Option

The SE option added luxury features. SE stood for “Special Edition.” Dodge sometimes called it the “sports hardtop” and advertised it as “for the formal type.”

The most noticeable difference was the vinyl roof with the smaller back window, AKA the “limo window.” Under that roof were a velour headliner and an overhead console with warning lights to remind you to close the door, get fuel, and fasten your seatbelt. The SE option added leather front seats.

SE badging included a triangular emblem on the back side of the roof and the name “Special Edition” on the inside of each door panel.

T/A Model

The T/A model was specially configured to qualify the Challenger to compete in the TransAm racing series. The T/A drew 350 horsepower from the 340 cubic inch engine with the Six-Pack carburetor. Feeding that engine was a forward-facing stand-off scoop built into a special fiberglass hood, a few of which found their way onto other models. Other modifications included dual side exhausts, heavy duty suspension with anti-sway bars, a back-deck “ducktail” spoiler, and different sized front and rear tires.


The Deputy was Challenger’s economy model. It was basic. It came with a black steering wheel, black or white vinyl seats, and a rear window that did not roll down. And if fuel economy, not performance, was your desire, you could get it with a 125 horsepower 198 cubic inch 6 cylinder engine. Guess what? Few were sold. Ironically, the poor sales made the Deputy one of the rarest Challengers and has boosted its value to collectors.

In just its premier year, Dodge made a vast variety of Challengers available, spanning the range from Spartan to luxurious, fuel-sippers to thinly disguised race cars. Whether your goal was the supermarket, the drag strip, or the twistiest road around, Dodge could build you a Challenger to fit.

The car shown here

The Challenger pictured in this article started life as an SE model but was upgraded to an R/T SE Hemi – a process the ancient Romans would have called apotheosis.

The example here sports a Dark Burnt Orange Metallic exterior with a black vinyl roof and a Sunfire Orange Metallic interior with leather seats.

The Vehicle Identification Number is JS29N0B112615, which decodes as follows:

J – Challenger

S – Special

29 – 2-door sports hardtop (SE)

N – V8 383 engine

0 – 1970 model year

B – Manufactured in Hamtramck, Michigan, plant

112615 – 12,615th vehicle in sequence

The odometer showed 00094 miles (151 km) at the time it was owned by Leonard Johnson (ljohnson@jk-cpas.com).

Though striking from any angle, the Challenger’s profile is perhaps the most stunning. A light-catching seam along the side emphasizes the subtle curve rearward of the door.

1970 Dodge Challenger R/T SE Hemi - automotive photography

R/T models sport an emblem to that effect on the grill and front side fenders. Though side stripes were available, the clean sides and color matching Rallye wheels give this example an elegance and sophistication that differentiates the Challenger from its contemporaries.

The R/T model includes the Power Bulge hood, painted black on top. Hood pins and lanyards keep the Hemi caged. Dual low-rise scoops let it breathe.

The emblem for the 426 Hemi engine lies along the sloping side of the scoops. If you have a Hemi engine, you want people to know it. Of course, the sound should be enough.

Pop the pins, swing open the hood, and treat yourself to what looks like acres of automotive engineering. Though low, the engine compartment is wide and deep, allowing room for a range of big-block engines. Even the underside of the hood bespeaks Chrysler’s penchant for under-the-skin engineering.

And then there’s that Hemi engine.

The Hemi demanded hard-core drivers. Upgrading your base V8 to the Hemi added $1,227 to the $2,953 price. You also had to accept only a 6-month warranty, forego air conditioning, pay exorbitantly for insurance (if you could get it), suffer arm cramps from pumping premium gas, and endure the scrutiny of police of all jurisdictions.

Then again, you could just tow it to the drag strip and lay down 14-second quarter-mile times all day long. It was an engine so great it had its own paint color: Hemi Orange.

The racing-style fuel cap flips open to ease the pain of keeping the single-digit fuel-mileage Hemi engine fed with premium petrol.

The SE option includes the vinyl-covered roof with the smaller rear window, sometimes called a “limo window.”

An SE emblem adorns the rear-side of the vinyl roof.

 At the rear, dual exhaust tips protrude through cut-outs in the valance panel.

In the center, between the tail lights is a reversing lamp spelling out “DODGE.”

Though not overly deep, the trunk is broad. And notice the sculptural form of the underside of the trunk lid.

The Rallye Gauge includes four circular pods. It includes a full-size tachometer (8000 rpm), speedometer (150 mph), and clock. The final pod is divided into quadrants for gauges reporting oil-pressure, alternator charging, water temperature, and fuel level. Also included is a trip odometer.

This model has the wood-grain steering wheel and gear-shift knob. The asymmetrical console keeps the focus on the driver.

The SE model also included a velour head liner and an overhead console with warning lights for Door Ajar, Low Fuel, and Seatbelts.

High-back bucket seats came as part of the R/T model. The SE option made the seats leather.

The one-piece door panels were an innovation in 1970. Because there was no sound-deadening material behind the panels, doors were prone to rattle. The script “Special Edition” proclaims that this is an SE model.

The driver’s side door sports a remote-control racing-style side-view mirror.

At the front, a deeply inset grill looks like a hungry mouth. This grill was based on sketches by designer Carl Cameron for the prototype 1966 Dodge Charger. The inset grill holds the Challenger and R/T emblems.

The overall impression is that of a middleweight boxer in top form and wearing a well-cut suit. Flowing lines predominate, inside and out: along the side, across the roof, around the grill and tail, across the dash, and around the windows. But there’s more than meets the eye. Conservative badging and low-profile scoops only hint at the robust drivetrain beneath. Power within elegance.


As with other Chrysler products of the era, the beauty of the Challenger was beneath the surface. The Hemi engine, named for its unusual hemispherical combustion chambers, was already a legend among performance fanatics. The TorqueFlite 3-speed automatic transmission was perfectly designed to handle the 425 horsepower off the crankshaft. Equally rugged rear ends got the power to the rear wheels in a way that wasted little.

The suspension could handle real roads at speed. At the front, independent non-parallel lateral control arms were mated to torsion bar springs and anti-roll bars. The rear featured a live axel on asymmetrical, semi-elliptic leaf springs. All that drive train and suspension are attached to a steel unit body chassis with subframes.

Engineering extended to even small details, like the left-hand threaded lug nuts on the driver’s side.

The bottom line for all that engineering was impressive performance: 0 to 60 in 5.7 seconds and a quarter mile in 13.8 seconds.

Every car unique?

By 1970 Chrysler had perfected “checkbox customization.” If you wanted a custom car, you no longer needed to get your hands dirty or scuff you knuckles, you just had to check off options on an order sheet. The Challenger epitomized this trend with a mind-wiping, checkbook-gobbling variety of models and list of options. With so many choices, many Challengers were quite literally unique.

So what were some of those choices?

  • Starting model. Hardtops included the base model, R/T, SE, R/T SE, T/A, and Deputy. And don’t forget the base and R/T convertibles.
  • Engines. Challengers could be fit with just about any Chrysler engine, from the 125 horsepower 198 cubic inch straight 6 all the way to the 425 horsepower 426 cubic inch Hemi. Ten choices at least.
  • Transmissions. Challenger drivers could shift gears manually with the A-833 4-speed with floor-mounted pistol-grip shifter or opt for the tough and reliable A-747 TorqueFlite 3-speed automatic with either column or floor shift lever.
  • Rear axles. Depending on the engine, as many as six different rear-end ratios were available, some with both locking and non-locking versions.
  • Steering wheels. There were four choices: the plain, black plastic one of the Deputy; the standard wood-grain rim; the one with a half-moon horn ring; and the Rim-Blow wheel.
  • Gas caps. At the pumps the driver could unscrew the flush-fitting cap or flip open the race-style cap boldly labeled “FUEL.”
  • Hoods. No cutting, bolting, or patching was needed. Drivers could get the flat, metal hood on the base model; the “Power Bulge” hood and scoops standard on the R/T; the stand-off scoop on the fiberglass hood of the T/A; or, the optional Shaker hood with the scoop attached to the engine and poking through a hole in the hood.
  • Roofs. Options included convertible, standard hardtop, and vinyl-covered hardtop. The SE added a smaller back window to the vinyl top. Vinyl was available in black, white, green, and in Gator Grain, a texture resembling alligator skin. A sunroof was optional, but not on the SE models.
  • Stripes. Depending on model, a variety of stripes could streak along the side, wrap around the tail in bumblebee fashion, or cover the hood bulge or scoop. Colors ranged from black and white to chartreuse and magenta. Some were available in 3M reflective materials.
  • Wheels. The standard steel wheel came with four styles of hubcaps: dog-dish, simulated wire wheel, deep dish, and deluxe. Upgrades included the Chrome Road wheel (AKA Magnum 500) and the slotted Rallye wheels. In all, four sizes of wheels could be fitted.


The Challenger competed in the TransAm series in 1970. Here, TransAm refers to the Trans American Sedan Championship, sponsored by the Sports Car Club of America. The Challenger competed as a Dodge factory entry against Ford Mustang, AMC Javelin, Chevy Camaro, and Plymouth Barracuda.

The Dodge team was managed by Ray Caldwell’s company, Autodynamics, known at the time primarily for manufacturing Formula V cars. The first team car was based on a standard Challenger T/A model right out of a local dealer’s showroom. The 340 cubic inch engine was destroked to 303 to meet the 5-liter engine displacement limit for the series. Still it yielded 460 horsepower, adequate for the car’s 3200 pound weight. Painted “Sublime” and sporting the number 77, the Challenger was driven by Sam Posey, now an occasional guest commentator on NBC Sports coverage of Formula 1 racing.

A later chassis was built for Autodynamics by Dan Gurney’s All American Racers, which built and raced the Barracuda in the same series. It bore the number 76.

The team’s best results were 3rd place finishes at Lime Rock, Road America, and Kent. And a Challenger finished 4th in points in the series.

Facts and figures

The example shown here is a Challenger SE upgraded to R/T Hemi specs. The following table describes typical R/T SE models. With so many options and variants, few pure standard models may exist. Take these facts and figures as typical, but not authoritative. The information comes from a variety of sources, mostly reliable. Some are estimates and some are calculations. And, I’m not a perfect typist. So … we can’t guarantee every item. Also keep in mind that the example shown here differed in some minor ways from the standard model.

Make and model: 1970 Dodge Challenger R/T SE Hemi.

Sequence: First year of the first generation (1970-1974).

Designer: Exterior: Carl Cameron. Hemi 426 engine: Tom Hoover.

Manufacturer: Dodge Division of Chrysler.

Where made: Dodge Main at Hamtramck, Michigan, USA

Platform: Chrysler E-Body.

Body style: 2-door hardtop.

Style ID: JS29N0B [VIN minus the Serial Number].

Body: Steel unit-body with subframes.

Frame: Unit-body with subframes.

Length: 191.3 in (4.859 m).

Width: 76.1 in (1.933 m).

Height: 50.9 in (1.293 m).

Wheelbase: 110 in (2.794 m).

Track: (front/rear) 59.7/60.7 in (1.516/1.542 m).

Drive: Rear-wheel drive.

Acceleration: 0-60 mph in 5.7 sec (0-100 km in 6 sec). ¼ mile in 13.8 sec at 101 mph.

Top speed: 140 mph (226 km/h).

Curb weight: 3549 lbs. (1610 kg).

Price new: $3498 + $1227 Hemi premium

Engine maker: Chrysler.

Engine type:Hemi V8 with two 4-barrel Carter AFB carburetors.

Engine size:. 426 cubic inches (6.974 L).

Engine power: 425 horsepower (317 kW).

Engine torque: 490 ft-lb (664 Nm).

Transmission:TorqueFlite 3-speed automatic (A-727).

Fuel type: Gasoline, premium grade.

Fuel consumption: 8.1 mpg (0.29 l/km).

Fuel capacity: 18 gal (68 liter).

Steering: Left-hand drive, rack-and-pinion.

Turning circle: 39.9 ft (12.16 m) between curbs.

Front suspension: Independent, non-parallel, lateral control arms. Torsion bar spring with anti-roll bar.

Rear suspension: Live axle on asymmetrical semi-elliptic leaf springs.

Brakes: Front – 11 x 3 inch (279 x 76 mm) drums. Rear – 11 x 2.5 inch (279 x 64 mm) drums.

Wheels: 15 x 7 in. (38 x 18 cm), Rallye wheels. Left-hand threaded nuts on the driver’s side.

Tires: Goodyear Polyglas F60 x 15.

Seats: Front: High-back leather bucket seats.

Back:: Bench.

Leg room: Front: 42.3 in (1.074 m). Rear: 30.9 in (0.785 m).

Electrical system: 12 volt, negative ground.

Gauges: Speedometer, tachometer, oil pressure, water temperature, fuel, clock.

Exterior colors:This example: Dark Burnt Orange Metallic. Available: Silver Metallic, Dark Gray Metallic, Light Blue Metallic, Bright Blue Metallic, Dark Blue Metallic, Plum Metallic, Bright Red, Light Green Metallic, Dark Green Metallic, Lime Metallic, Go Mango, Beige, Light Turquoise Metallic, Red, Burgundy Metallic, Tan Metallic, Dark Tan Metallic, Hemi Orange, White, Black, Bright Yellow, Antique Ivory, Light Gold Metallic, Gold Metallic, Bright Green Metallic.

Interior colors: This example: Sunfire Orange Metallic. Available: Citron Gold Metallic, Puma Tan Metallic, Sunfire Orange Metallic, Bayou Green Metallic, Baltic Blue Metallic, Jewel Black, Ivory, Sierra Blue Metallic.

Top colors: Black, vinyl.

Number made: 37 (with Hemi and TorqueFlite)

Available engines

Official models

Thinking of buying one?

Drivable 1970 Dodge Challengers can be had for prices ranging from $20K for an unrestored base model to $250,000 for a perfect R/T Hemi with original engine and transmission. Whether you want one to drive, to restore, or to show, you can find something.

Base models are the least expensive. Expect to pay more for the SE or R/T package. A 440 Six-Pack engine will increase the price dramatically and the 426 Hemi will send it through the roof. Unusual options, such as the Gator Grain roof, can spike prices too.

Look out for common problems. Drum brakes, never that strong to begin with, may have faded to a mere suggestion. Check for rust everywhere. Probe for rust and repairs along the floor, fenders, quarter panels, windowsills, cowls, and trunk. Also check the seats for cracked vinyl and crumbling foam. Examine the door panels for scratches and for imperfect fit. Keep in mind that replacement parts are available for just about everything on the Challenger.

Check for authenticity: Is the car what it appears to be or has it been upgraded from a less expensive model? Check the VIN and ask lots of questions.

Restoring one?

Today, you could almost build a Dodge Challenger from scratch just using available replacement parts. Chrysler’s aftermarket parts division caters to restorers, hot-rodders, and customizers. Date-coded parts are available to preserve authenticity. Rebuild kits can keep original components in service. And improved-performance parts abound. Everything is available: sheet metal, glass, engines, drivetrains, seats, carpets, everything.

Want photos?

To license photographs or purchase prints, contact William Horton Photography at +1.303.545.6964 or e-mail william@horton.com.

One Reply to “1970 Dodge Challenger R/T SE Hemi Article”

  1. Your diagram under the “How are “Challenger models related?” section needs to be corrected, the R/T model is a higher performance car than the Base model, not the other way around as your diagram shows.

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