Pontiac Firebird – Wikipedia, the free encyclopedia

16 May 2015 | Author: | Comments Off on Pontiac Firebird – Wikipedia, the free encyclopedia
Pontiac Firebird

The Pontiac was built by the Pontiac division of Motors between 1967 and The Firebird was introduced the same as the automaker’s platform-sharing model, the Camaro. This coincided the release of the 1967 Mercury which shared its platform another pony car. the Mustang .

The vehicles were by various four-cylinder, six-cylinder, and V8 sourced from several GM While primarily Pontiac-powered 1977, Firebirds were with several different from nearly every GM until 1982 when GM to discontinue engines it felt unneeded and either spread designs from individual among all divisions or use new engines of architecture. [ 1 ]

Second generation [ edit ]

The second generation for the 1970 model year was until February 26, 1970, of tooling and engineering problems; its popular designation as a 1970½ while leftover 1969s listed in early Pontiac without a model-year identification. [ 5 ]

Firebird

Firebird Esprit

Formula

Firebird Trans-Am

Firebird Trans-Am WS6

Firebird

Firebird Redbird

Firebird

Special versions

Black Edition (often called editions), 1976-1981

Gold Edition, 1978 only.

Trans-Am (Package offered by the dealership Mecham Pontiac in AZ). [ 6 ]

1976 50th Anniversary Edition (which was a Black Special Edition)

10th (Trans Am) Anniversary

1980 Pace Car Indy 500 (turbo Trans Am)

1981 Edition (turbo Trans [ 7 ]

Pontiac Firebird

Replacing the Coke bottle was a more swoopy body with the top of the rear window going almost straight to the lip of the trunk lid—a look was to epitomize F-body styling for the period during the Firebird’s The new design was initially characterized a large C-pillar. until when the rear window was

There were two Ram Air 400#160;cu#160;in engines for 1970: the 335#160;hp Ram Air III (366#160;hp (273#160;kW) in GTO) and the (257#160;kW) Ram Air IV (370#160;hp (280#160;kW) in that were carried from 1969. The difference the GTO and Firebird engines was the secondary linkage which prevented the barrels from opening Bending the linkage to allow carburetor operation resulted in engine performance.

Curb weights rose in the 1973 model year due to the of 5#160;mph (8.0#160;km/h) telescoping and various other crash and related structural enhancements; Trans Ams weighed in at 3,850#160;lb in their first year of (1973 model year).

The 455 available in the second generation Trans Am was arguably the last engine of the original muscle car The 455#160;cu#160;in (7.5#160;L) engine its first appearance in the Firebird in as the 455-HO, which continued the 1972 model year. In and 1974, a special version of the called the Super Duty 455 was offered.

The SD-455 consisted of a cylinder block that 4-bolt main bearings and material in various locations for strength. Original plans for a forged crankshaft. although production SD455s received iron crankshafts with enhancements. Forged rods and aluminum pistons were as were unique high-flow heads.

The 480737 code cam (identical to the RAIV 041 cam) was originally for the SD455 engine and was fitted the pre-production test cars former Pontiac Special Engineer Skip McCully*), one of was tested by both HOT ROD and CAR AND DRIVER However, actual production were fitted with the 493323 cam and 1.5:1 rocker due to the ever-tightening emissions standards of the This cam and rocker combination, with a low compression ratio of advertised (7.9:1 actual) 290 SAE net horsepower. It should also be that production SD455 did not have functional hood while the pre-production test did.*

Actual production yielded 1/4 mile results in the 14 to 15.0 second/98 MPH range MOTOR TREND MAGAZINE, ’73 and Roger Huntington’s AMERICAN SUPERCAR) – results are consistent with a 3,850 car (plus driver) and the rated 290 SAE net figure. (An original rating of 310 SAE net had been assigned to the SD455, that rating was based on the non-compliant pre-production engines, as above. That rating in published 1973 model Pontiac literature, which had printed prior to the pre-production barely passing* emissions and the last minute switch to became the production engine. model year production listed the specifications of the production (290 SAE net horsepower).

A production line stock produced 253 rear wheel HP on a dyno, as reported by HIGH PONTIAC magazine (January, This is also consistent the 290 SAE Net horsepower factory rating (as at the crankshaft). Skip McCully that no production SD455s to the public were fitted the 480737 cam.* When about the compromises for the production engine, Mr. McCully responded, camshaft, jetting, and vacuum

He followed by stating that he have preferred a compression of 10.25:1, a camshaft with 041 timing, slightly richer jetting, and as much vacuum as the engine would tolerate.* 2005 issue of HIGH PONTIAC Magazine). Regrettably, proved to be impossible due to the emissions of the era. [ 8 ]

During a 1972 the Firebird (and the sister Camaro ) were nearly [ 9 ] Pontiac offered the 455 through the model year, but tightening on vehicle emissions guaranteed its Thus, the 1976 Trans Am was the of the Big Cube Birds, with 7,100 units produced the 455 engine.

The 1974 models featured a shovel-nose front end and new wide taillights. In 1974, Pontiac two base engines for the Firebird: a (75#160;kW) 250#160;cu#160;in (4.1#160;L) and a 155#160;hp (116#160;kW) 350#160;cu#160;in V8. Available were 175#160;hp to 225#160;hp (168#160;kW) 400#160;cu#160;in V8 engines, as well as the 455#160;cu#160;in produced 215#160;hp (160#160;kW) or (190#160;kW), while the SD-455 290#160;hp (220#160;kW). The 400, and SD-455 engines were in the Trans Am and Formula models 1974

The 1975 models a new wraparound rear window a revised roofline and the turn were moved up from the panel to the grills which it from the previous year The Super Duty engine, 4-speed, and TurboHydramatic were no available in 1975. The 400 was standard in the Am and the 455 was optional for both 1975 and models.

In 1976, Pontiac their 50th Anniversary, and a edition of the Trans Am was released. in black with gold this was the first anniversary Am package and the first production and Gold special edition. In Pontiac offered the T/A 6.6#160;Litre 400 W72) rated at 200#160;hp as opposed to the regular 6.6#160;Litre 400 L78) rated at 180#160;hp

The T/A 6.6 equipped engines had chrome covers, while the base 400 had painted valve covers. In California and high-altitude cars the Olds 403 engine, which a slightly higher compression and a more usable torque than the Pontiac engines of

A distinctive, slant-nose facelift in 1977, redone somewhat in From 1977 to 1981, the used four square while the Camaro continued to the two round headlights that had been shared by both Generation designs. The 1977 Special Edition became after being featured in and the Bandit . Later on the 1980 model was used for Smokey and the II .

Pontiac Firebird
Pontiac Firebird
Pontiac Firebird
Pontiac Firebird
Pontiac Firebird
Pontiac Firebird
Pontiac Firebird
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