Unearthing a 1981 Cadillac Fleetwood Brougham Coupe
The Cadillac Division did something big back in 1949 when it introduced the 331-cubic-inch overhead-valve V8, a technological masterpiece that shook the competition forever. The final model of this engine family was considered a huge leap forward, which is the 368-cubic-inch version hosting a futuristic cylinder-deactivation system that picks trouble with oil producers. Unfortunately, technology at that time wasn’t advanced and efficient enough to make the L62 V8-6-4 engine run effectively, and that became catastrophic for GM. The V8-6-4 was first introduced in the 1981 model year, and they are incredibly rare in today’s current times, sp this Colorado car is indeed a precious find.
The year 1981 was the only time V8-6-4 were placed in regular passenger Cadillacs, although consumers of commercial chassis and limousines could obtain it until 1984. What’s interesting is that the standard Cadillac engine back in that time was the 350-cubic-inch Oldsmobile diesel while it was only optional to get a 252-cubic-inch Buick V6. The V8-6-4 had a 140 horsepower then, giving the 4,069-pound Fleetwood Brougham Coupe a slightly better power-to-weight ratio than that of the Chevrolet Chevette Scooter. Torque of 265 lb-ft was pleasant in such a way it provides a good enough acceleration.
The V8-6-4’s Eaton-designed cylinder-deactivation scheme had something to do with solenoids on each of the two cylinder’s rocker arms. This is seen on the car’s distinctive bulges around its bodywork.
The 1981 Cadillac Fleetwood Brougham Coupe’s price was at $15,942, or roughly around $45,000 in 2018 currency.