1970 Dodge Challenger

A 1970-only model was the Dodge Challenger T/A (Trans Am) racing homologation car. In order to race in the Sports Car Club of America's Trans American Sedan Championship, it built a street version of its race car (just like Plymouth with its Plymouth 'Cuda AAR) which it called the Dodge Challenger T/A (Trans Am). Although the race cars ran a destroked version of the 340, street versions took the 340 and added a trio of two-barrel carburetors atop an Edelbrock aluminum intake manifold, creating the 340 Six Pack. Dodge rated the 340 Six Pack at 290 bhp (216.3 kW), only 15 bhp (11 kW) more than the original 340 engine (and mysteriously the same rating as the Camaro Z/28 and Ford Boss 302 Mustang), it actually made about 320 bhp (238.6 kW).

Engine of 1970 Dodge Challenger

It breathed air through a suitcase sized air scoop molded into the pinned down, hinged matte-black fiberglass hood. Low-restriction dual exhausts ran to the stock muffler location under the trunk, then reversed direction to exit in chrome tipped "megaphone" outlets in front of the rear wheels. Options included a TorqueFlite automatic or pistol-grip Hurst-shifted four-speed transmission, 3.55:1 or 3.90:1 gears, as well as manual or power steering. Front disc brakes were standard. The special Rallye suspension used heavy duty parts and increased the camber of the rear springs. The T/A was among the first production vehicles to use different size tires front and rear: E60x15 fronts, and G60x15 in back.

The modified camber elevated the tail enough to clear the rear rubber and its side exhaust outlets, thick side stripes, bold ID graphics, a fiberglass ducktail rear spoiler, as well as a fiberglass front spoiler added to the image. The interior was strictly stock Challenger. Unfortunately, the race Challenger T/A was not competitive, due to the fact that they had to be large enough to accommodate engines as large as the 426 Hemi, and 440, the street version suffered from severe understeer in fast corners. It could turn mid 14s in the quarter mile, which would do any small block muscle car proud. The T/A would only be available for 1970 as Dodge pulled out of Trans Am racing. Only 2,142 T/As were made.

(Source : Wikipedia)
(Pics sources : Wikipedia)

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1970 Chevrolet Monte Carlo

The Monte Carlo was originally created by Scott Butler as Chevrolet's counterpart to the new G-body Pontiac Grand Prix, which had been introduced to great success for 1969. For the 1968 model year, GM had instituted a split-wheelbase policy for its A-body intermediate cars: 112 in (2845 mm) for two-door models, 116 in (2946 mm) for sedans and station wagons. The Grand Prix was a two-door coupe riding a special 118 in (2997 mm) version of the A-platform (known as the "G-body "). Rather than add the extra length within the body to increase passenger space (as was customary on sedans) the G-body (also known as the A-body Special) spliced the extra length between the firewall and the front wheels, creating an unusually long hood. The look was very successful, and the new Grand Prix greatly outsold its larger, B-body predecessor despite higher prices.

The Monte Carlo was the brainchild of Elliot M. (Pete) Estes, general manager of Chevrolet, and Chevrolet's chief stylist, Dave Holls. They modeled the styling on the contemporary Cadillac Eldorado, although much of the body and structure were shared with the Chevrolet Chevelle (firewall, windshield, decklid, and rear window were the same), adding new front end sheetmetal, wider C-pillars, and new rear fenders. Bulges were added to the fenders to create a more muscular appearance. The Monte Carlo also had the then-fashionable concealed windshield wipers.

Though the Monte Carlo was developed at Chevrolet under the leadership of Pete Estes, it was formally introduced in September, 1969 by John Z. DeLorean, who succeeded Estes as Chevrolet's general manager earlier in the year after previously heading the Pontiac division, where he led the development of the similar-bodied 1969 Grand Prix introduced the previous model year.

The standard powertrain was the 350 CID (5.7 L) Chevrolet "Turbo-Fire" small-block V8 with a two-barrel carburetor, rated at 250 hp (186 kW) (gross) @ 4500 rpm and 345 ft·lbf (468 N·m) of torque @ 2800 rpm, mated to a Turbo Hydramatic 350 Transmission. Front disc brakes were standard equipment. The dashboard was basically identical to the Chevelle except for fake wood trim, according to Holls a photographic reproduction of the elm trim used by Rolls-Royce, and higher grade nylon (or vinyl) upholstery and deep-twist carpeting were used. Base priced at US$3,123, the Monte Carlo cost $218 more than a comparable Chevelle Malibu.

(Source : Wikipedia)

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1970 Chevrolet Chevelle SS 454

The age of muscle cars peaked as the 1970s began, Chevrolet Chevelle SS 454 helped to herald the ascent. When GM lifted its displacement ban on midsize cars, Pontiac, Olds, and Buick responded with 455-cid mills with up to 370 bhp. Chevy's retort was a 454-cid V-8 that started at 360 bhp and ended at a barbaric 450. This was the muscle car summit. The wrapper was a restyled Chevelle that again presented the Super Sport as an option package for hardtops and convertibles.The SS Chevelle had a handsome new dash, and on the road, exhibited far more poise than its weight and size would suggest.

Engine of 1970 Chevrolet Chevelle SS 454

Specifications :
Wheelbase, inches: 112.0
Weight, lbs: 3,800
Number built: 8,773

Top Available Engine
Type: ohv V-8
Displacement, cid: 454
Fuel system: 1 x 4bbl.
Compression ratio:11.25:1
Horsepower @ rpm: 450 @ 5600
Torque @ rpm: 500 @ 3600

Representative Performance
0-60 mph, sec: 6.1
1/4 mile, sec. @ mph: 13.7 @ 103 1970

Sources : Muscle Cars, American Street Machines

Pics sources : Modell Paradies, How Stuff Works

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