1970 Dodge Challenger Fact Sheet

Dodge’s street version of its race car was the Dodge Challenger T/A. Street versions  added a three 2-barrel carburetors to the 340 CID V-8. An air scoop was molded into the matte-black fiberglass hood and a low-restriction dual-outlet exhaust exited in chrome-tipped outlets in front of the rear wheels. Options included a TorqueFlite automatic or Hurst-shifted 4-speed transmission, 3.55:1 or 3.90:1 gear ratios. Thick dual side stripes, bold ID graphics, a fiberglass duck tail rear spoiler, and a fiberglass front spoiler were also included.

Challenger 340. The Challenger 340 package was optional on the base models. The package included the 340 CID V-8 and the performance hood with air scoops, E60 x 15 tires, Rallye Suspension and “Scat Pack” decals on the rear windows. The “Bumblebee” stripe was optional at no extra cost.

Special Edition. Could be ordered as a base Challenger or a R/T. The SE had all Base or R/T items, plus Vinyl roof covering, smaller “formal” rear window, overhead interior consolette with warning lights, and leather/vinyl bucket seats.

R/T.  The ‘Cuda had all base Challenger equipment, plus, as a base engine, the 335 HP 4-barrel 383 CID “Magnum” V-8. It featured Rallye instrument cluster (clock, tachometer, trip odometer, 150 mph speedometer, and oil pressure gauge), variable speed wipers and washer,  heavy-duty suspension and drum brakes, and F70-14 white-letter tries. A longitudinal stripe or “Bumblebee” stripe was available at no extra cost.

Challenger T/A.  The Challenger T/A had all ‘R/T equipment, plus, as a base engine, the 290 HP Three 2-barrel 340 CID V-8. It featured heavy-duty suspension and drum brakes, T/A ornamentation, and E60x15 Goodyear Polyglas in the front, and G60x15 on the rear. It could be had with either 4-speed manual or 3-speed Torqueflite automatic transmission.  See “Challenger T/A Package Fully Disclosed” tab Section below for complete details on this package.

Challenger T/A 340 CID V-8. Overhead valves. Cast iron block.  Five main bearings.
Displacement: 318 cubic inches.
Bore and stroke: 4.04 x 3.31 inches.
Compression ratio: 10.5:1.
Horsepower: 290 @ 4400 RPM.
Torque: 345 @ 3400 RPM.
Valve lifters: Hydraulic. 268°, Exhaust 276°, Overlap: 44°. Valve Lift: (Intake) 0.430″, (Exhaust) 0.445″.
Carburetors: Holley three 2-barrel: (manual transmission) Front R-4789A, Center R-4791A, Rear R-4790A. (automatic transmission) Front R-4789A, Center R-4792A, Rear R-4790A. NOTE: Chrysler Carburetor Part Numbers: Front 3577185, Center 3577182, Rear 3577185. (automatic transmission) Front 3577185, Center 3577183, Rear 3577185.

NOTE: The engine contained the following specific items: Special #3577130 Block, #3418915 Heads with relocated pushrod holes, and Edelbrock aluminum intake #3418681. See description below:

Dodge 383 CID  V8. Overhead valves. Cast iron block.
Displacement: 383 cubic inches.
Bore and stroke: 4.250 x 3.375 inches.
Compression ratio: 8.7:1.
Horsepower: 290 @ 4400 RPM.
Torque: 390 @ 2800 RPM.
Valve Lifters: Hydraulic .
Camshaft timing: Intake 256°, Exhaust 260°, Overlap: 32°; Lift: (intake) 0.425″; (exhaust) 0.437″.
Carburetor: Carter Two-barrel (automatic transmission) BBD-4726S, California BBD-4728S; With A/C BBD-4894S or Holley Two-barrel R4371A, California or with A/C: R4373A .

(N44) Dual transverse flow mufflers (the inlet and outlet were on the same end), located forward of the rear axle with side exiting chrome tipped exhaust pipes. The cars were shipped with the exhaust tips in the trunk and installed by the dealer. High flow cast iron exhaust manifolds completed the system. PN2863545 (left) and 2863552 (right). The Challenger T/A and the AAR Cuda were the only cars produced with a black painted exhaust system.

Hurst pistol grip, close ratio four-speed {D21) was standard with the 727 Torqueflite (D32) being optional with either floor shift or column shift.

8.25″ sure-grip (D91) with 3.55:1 (D56) standard, 3.91:1 (D57) optional. The Dana 60 was not available. The information states that the rear axle ratios were to be either 3:55 or 3:91, however many cars left the factory with 3.23 gears.

(Code 513) Heavy duty shocks {525), larger 0.95″ diameter front sway bar {531), 0.75″ diameter rear sway bar, 0.92″ torsion bars and special rear springs with a rate of 150 lbs/inch with increased arch-camber

Standard 11-inch power disc front with semi-metallic linings, 11-inch drum rear. No optional brake system available.

24:1 manual steering standard. Options available were (Code 574) fast ratio 12:1 power steering or 16:1 standard power steering (Code 577).

(Code U01) Goodyear raised white letter Polyglass GTs, E60 x 15 front, G60 x 15 rear. (These were the first cars from Detroit to have different sized front and rear tires).

15 x 7 silver Ralleye wheels (Code W21) standard.  Weight saving collapsible spare (Code W34) was a required option, it was a F78 x 14 BF Goodrich.

Black, fiberglass fresh air hood (Code N94) with hood pins (Code J45) was standard. No other hood was used. The hood springs are slightly different being smaller with less tension. Black grilles were standard on T/A’s.

Inside day/night (Code G41), and painted driver’s side, remote controlled racing mirror (Code G34) was standard. Painted manual passenger side mirror (Code G36) was optional.

Black, ABS plastic rear duck tail spoilers (Code J82) were standard. Front spoilers (Code J78) were optional, shipped in the trunk and dealer installed.

Interior options were the same as the R/T. Interior colors: Black, White, Green, Blue, Burnt Orange and Red, as well as cloth hounds tooth seats. All radio options, light package options available. All antennas (Code N94), were mounted on the right rear quarter,  the first and last time on any Chrysler Product, the Ralleye dash (Code A62) was optional.

Sheet Metal: Challenger T/As came with what is known as “15 inch fenders”. The difference between 14″ and 15″ fenders is the lip at the top of the wheel well is rolled in. All other sheet metal is the same as the standard E-body.

Paint: All acrylic enamel colors available –  same as ‘Cuda. Organasol black (Ditzler code DDL9355) was used on all hoods, taillight panels, fender tops.

Stripes: “340 Six Pack” fender decals on Challenger only

Rear window louvers (Code A67), vinyl roof limited to black (Code V1X), power windows, rear defogger, wheel lip moldings (Code M26).

Air conditioning (Code H51), heavy duty drum brakes (Code B11), rear spoiler­ wing type (Code J81), luggage rack (Code M91), road wheels (Code W23), trailer tow package (Code A35), three­ speed manual transmission (Code D13), basic group (Code A04), shaker hood (Code N96), extra heavy duty suspension (Code 515), delete tape stripe (Code V68), vinyl side protection molding (Code V50), cruise control (Code N88). No T/A came with factory air.