The Pontiac Trans Am was an automobile produced by Pontiac, a division of General Motors (GM), to appeal to the growing muscle car population. Four distinct generations, based on Pontiac Firebird coupe body styles were produced between 1967 and 2002. These cars were built on the F-body platform, which was also shared by the Chevrolet Camaro.

The first generation was available only in 1969. The second generation was available from 1970 to 1981 and was featured in the 1977 movie Smokey and the Bandit. The third generation, available from 1982 to 1992, was featured in the 1984 movie Alphabet City. KITT, the automotive star of the popular 1980s TV series Knight Rider, was a modified third generation Trans Am. The fourth generation Trans Am, available from model years 1993 to 1997, offered between 275 and 305 horsepower due to the LT1 Small block aluminum headed engine. With the facelift beginning in the 1998 model year on to 2002 The car boasted a powerful 325hp.

The Trans-Am was discontinued with the Firebird in 2002, however the body is still used in the IROC Racing Series.

Trans Am engines

First generation
1969: Ram Air III 400 (Pontiac), Ram Air IV 400 (Pontiac) 345hp, Ram Air V 400 (Pontiac) 500hp

Second generation
• 1970: Ram Air III 400 (Pontiac), Ram Air IV 400 (Pontiac), Ram Air V 400 (Pontiac, rare dealer-installed option)
• 1972: Base 455 (Pontiac), 455 H.O. (Pontiac)
• 1973: Base 455 (Pontiac), Super Duty 455 (Pontiac)
• 1974: 400 (Pontiac), Base 455 (Pontiac), Super Duty 455 (Pontiac)
• 1975: 400 (Pontiac), 455 (Pontiac)
• 1976: 400 (Pontiac), 455 (Pontiac)
• 1977: 403 (Oldsmobile), 400 (Pontiac), W72 400 (Pontiac)
• 1978: 403 (Oldsmobile), 400 (Pontiac), W72 400 (Pontiac)
• 1979: 301 (Pontiac), 403 Oldsmobile, W72 400 (Pontiac)
• 1980: 301 (Pontiac), 305 (4 speed only) (Chevrolet), 301 Turbo (Pontiac)
• 1981: 301 (Pontiac), 305 (4 speed only) (Chevrolet), 301 Turbo (Pontiac)

Third generation
From 1982 on all engines are Chevrolets unless stated otherwise.

• 1982: 305 4 barrel, 305 Cross-Fire Injection (First year for fuel injection in Trans Am)
• 1983: 305 4 barrel, 305 Cross-Fire Injection, 305 4 barrel H.O. (Only 662 were made all 5-speeds.)
• 1984: 305 4 barrel, 305 4 barrel H.O.(1500 anniversary editions, 500 of them 5 speed)
• 1985: 305 4 barrel, 305 Tuned Port Injection, 305 4 barrel H.O. (5 speed only)
• 1986: 305 4 barrel, 305 Tuned Port Injection, 305 4 barrel H.O. (5 speed only)
• 1987: 305 4 barrel, 305 Tuned Port Injection, 350 Tuned Port Injection
• 1988: 305 Throttle Body Injection, 305 Tuned Port Injection, 350 Tuned Port Injection
• 1989: 305 Throttle Body Injection, 305 Tuned Port Injection, 350 Tuned Port Injection, 231 Turbo (Buick)
• 1990: 305 Tuned Port Injection, 350 Tuned Port Injection
• 1991: 305 Tuned Port Injection, 350 Tuned Port Injection
• 1992: 305 Tuned Port Injection, 350 Tuned Port Injection

Fourth generation
• 1993: LT1 350
• 1994: LT1 350
• 1995: LT1 350
• 1996: LT1 350
• 1997: LT1 350
• 1998: LS1 346
• 1999: LS1 346
• 2000: LS1 346
• 2001: LS1 346
• 2002: LS1 346

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