#Powerglide

During the middle 1960s, the Chevrolet full-sized sedan was the most mainstream car in North America. The pinnacle for sales numbers came in 1965, with way more than a million new big Chevrolets sold, but 1967 saw 1,127,700 Biscaynes, Bel Airs, Impalas, and Caprices leave the showrooms (if you include wagons in the count, and of course you should).

Of all these full-sized Chevy cars in 1967, by far the most common was the Impala four-door post sedan, and that’s we’ve got for today’s Junkyard Find.

In the last episode of the Impala Hell Project story, Saddam’s invasion of Kuwait in the summer of 1990 made me choose a small-block engine instead of the big-block I’d originally planned as a worn-out 283 replacement. I was still running the factory single exhaust and two-speed Powerglide transmission at that point, so some more upgrades were in order.

In the thirties and forties, GM pioneered and brought to market some of the most innovative, successful and lasting new technologies: diesel-electric locomotives, the modern diesel bus, automatic transmissions, refrigeration and air conditioning systems, high compression engines, independent front suspension, and many more. But GM’s technology prowess was just one facet of its endlessly warring multiple personalities. Planned obsolescence, chrome, fins and financial rationalization were the real moneymakers, especially during the technically conservative fifties. But in the period from 1960 to 1966, GM built three production cars that tried to upend the traditional format: the rear engined 1960 Corvair, the front-wheel drive 1966 Toronado, and the 1961 Tempest. And although the Corvair and Toronado tend to get the bulk of the attention, the Tempest’s format was by far the most enduring one: it was a BMW before BMW built theirs. If only they had stuck with it.