Lincoln Mark V
The large-sized Lincoln Continental Mark V was a restyled and updated version of the 1972–1976 models. The old Mark IV's more rounded styling was replaced with a more sharp-edged look. The new model no longer shared its platform with the Ford Thunderbird (which was downsized by shifting its nameplate to the smaller Mercury Cougar/Ford LTD II platform.) Interior design remained similar to the Mark IV, with variants in the seat patterns and dashboard trim (while retaining the general dashboard layout of the IV) being the primary differences.
The 460 cu in (7.5 L) of the Mark IV remained the standard engine of the Mark V for the 1977 model year.
In 1978, the Ford 400 cu in (6.6 L) Ford 335 engine engine replaced the 460 Ford 385 engine V8 as standard equipment, the latter available as an option everywhere but in California. The 460 V8 option was deleted entirely for 1979.
The Mark V was larger and more complex than its predecessor, coming just ten inches short of being 20 feet (6.1 m) long. The electrical system and mechanical componentry shared less in common with other Ford products, and was harder to service than the corresponding equipment on the Mark IV.
Source: Wikipedia, 2012