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1971 429CJ Option
By Richard Brown and Mitch Lewis
(From the "Cougar Club of America"
Website - http://www.cougarclub.org/index.shtml)
- The 429CJ option was available for the 1971 model year only. There were
448 cars built, 47 convertibles and 401 hardtops. To date (3/01) we have 36
cars registered, 13 convertibles and 23 hardtops.
The 429CJ option was offered in two guises, J-CODE = RAM-AIR and C-CODE =
NON-RAM AIR, horsepower and torque figures were quoted the same for both
options: 370HP and 450FT/LBS. The 429-Cobra-Jet Registry was established to
document and track all 429CJ optioned Cougars.
429CJ DISTINGUISHING FEATURES.
- C or J in VIN
- All models and body styles were available with the 429CJ option
including XR7/STD convertibles and hardtops and the Cougar GT.
- All cars featured a dress up engine kit featuring "Ribbed"
aluminum valve covers, bright dipstick, oil filler cap, radiator cap and air
cleaner cover.
NOTE: bright air cleaner cover available on non ram-air equipped cars only.
- All engines featured 4 bolt main bearing blocks.
- Hurst 4speed or C6 automatic transmissions were required options (no 3
speeds). All 4 speed cars have rev limiters, C6 transmissions were a special
unit with additional clutch plates, cast iron tail-shaft and "R"
servo.
- All cars had competition suspension. Larger front sway bar, rear sway
bar, heavy duty shocks, staggered in the rear.
- Power steering equipped cars had variable ratio 20.2:1 and a power
steering cooler on 3.50 rear end ratio cars only. (power steering oil cooler
were included on some but not all 3.25 rear end ratio cars.
- Power brakes were a required option.
- All cars were equipped with 27" heavy duty radiators.
- All cars were equipped with a 720CFM Rochester/Quadrajet carb. ( Note
the 780 Super Cobra-Jet was not offered as a production option).
- "Drag pak" and "Super Drag pak" were not offered as
production options.
- Functional hood scoop was a feature of the Ram-Air option, all Cougar
GT models have hood scoops but functional only on 429 Ram-Air motor option.
- All cars were equipped with dual exhaust.
- All cars were equipped with heavy duty battery (Group 27F).
- Rear end ratios were 3.25 or 3.50 only, traction lock was optional. All
air conditioned cars required the 3.25 ratio. All cars had 31 spline rear
axles.
- Air conditioning was not offered as a production option on
convertibles.
- Tire/wheel options were 14x7 with either F70X14 or F70X14RWL traction
tires. 15X7 wheels with hub cap and trim ring and F60X15RWL traction tires
were an option.
- All paint and interior codes were available.
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