Firebird and Trans Am�sales soared in 1978 to a record 187,285 |
1978 Pontiac Trans Am
Much remained the same in 1978 for the styling of the Trans Am & Firebird. Pontiac was now capitalizing on the popularity of the Firebird and Trans Am as sales soared to a record 187,285 for all. Pontiac engineers reversed years of declining power by raising the compression ratio in the Pontiac 400 through the installation of different cylinder heads with smaller combustion chambers (1977 pontiac 400 engines also had the 350 heads bolted to the 400 blocks, these heads were known as the 6x-4 heads)(taken from the Pontiac 350). This increased power by 10% for a total of 220 during the 1978-79 model years. The 400/403 options remained available until 1979, when the 400 CID engines were only available in the 4-speed transmission Trans Ams and Formulas (the engines had actually been stockpiled from 1978, when PMD had cut production of the engine).
Firebird | base price $4,545 | 32,672 produced |
Firebird Esprit | 36,926 produced | |
Firebird Formula | 24,346 produced |
Pontiac Trans Am | base price $5,799 | 93,341 produced |
Engine Options
V6 231, "A" Code - 105hp V8 305 "U" Code - 145 hp V8 350, "X" Code - 155 hp V8 350, "L" Code - 170 hp V8 350, "R" Code - 170 hp V8 400, "Z" Code - 180 hp, Note: Optional T/A V-8 same as V8 400, only with 220 hp! Note: V8 403 cid, was used in all Calafornia models!
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