—SMIt seems ironic that during the late '70s more 403 Oldsmobile motors were installed in Pontiac Firebirds than in Olds 442s, but it's true. Between 1977 and 1979, 279,026 Trans Ams rolled off the ...

Its Firebird Trans Am still strutted around like it hadn’t read the EPA memo. In 1979, even as disco faltered and smog rules stiffened, the bird on the hood burned bright in metallic paint—and Dylan ...

First, the 403 is based on a block with a 9.330-inch deck height (as are the 260, 307, 330, and 350 engines). The 400, 425, and 455 engines use a taller block with a 10.625-inch deck height—hence the ...