At the heart of the W-31 package was a 350 cubic-inch ... and an automatic transmission," according to Hemmings. While 325 horsepower was respectable in 1968, other engines had higher numbers.

but now they’ve upped the ante with their Builder Series engine and transmission packages. These are available in a choice of small-block Chevy, big-block Chevy, GM LS, and small-block Ford engines.

The 2010 Lincoln MKS, the first Ford Motor Company vehicle to offer the 3.5-liter EcoBoost engine and 6F-55 transmission package, will deliver an impressive 355 horsepower and a responsive 350 ft.- ...