1971

The 1971 Ford F-100 brought important changes beneath the skin as Ford began transitioning its truck powertrain lineup away from the long-serving FE engine family. The most significant mechanical development was the replacement of the 360 cubic-inch FE V8 with the new 360 cubic-inch Modified V8, commonly known as the 360M. At the same time, Ford introduced the Ranger XLT trim package, which would become the defining luxury option for the F-100 and establish a naming convention that persisted for decades.

The 360 Modified V8 was part of Ford’s new 335-series engine family, a clean-sheet design intended to replace the aging FE engines that had served Ford trucks since 1958. Despite sharing the same 360 cubic-inch displacement as the FE it replaced, the Modified engine was an entirely different design with a different block, heads, and architecture. It produced 215 horsepower, matching the outgoing 360 FE, but offered improved manufacturing efficiency and was designed from the start to meet tightening emissions standards. The 390 FE V8 remained available for 1971, producing 255 horsepower, but this was its final year in the F-100. After more than a decade of service in Ford trucks, the FE big-block was being phased out.

The 302 Windsor V8 continued as the most popular engine choice, rated at 210 horsepower and offering the best balance of performance, weight, and fuel economy in the V8 range. The 240 and 300 cubic-inch inline sixes remained the base and step-up engines for economy-minded buyers, with the 300 Six in particular earning a reputation for exceptional durability in commercial service.

The Ranger XLT trim package debuted as the new top-of-the-line option, positioned above the existing Ranger. The XLT added wood-tone accents on the instrument panel, upgraded upholstery with pleated vinyl or optional cloth inserts, full carpeting, extra sound deadening, and additional exterior chrome. The Ranger XLT made the F-100 interior competitive with many passenger cars of the era and proved extremely popular with personal-use buyers. The trim hierarchy now ran from Custom through Sport Custom, Ranger, and Ranger XLT, offering four distinct levels of interior finish.

Exterior styling was largely unchanged from the 1970 refresh. The grille, headlight arrangement, and body panels carried over, with updates limited to new colors and minor trim revisions. The Bumpside body continued to age well visually, and the design still looked contemporary five years into its production run.

Production for 1971 reached approximately 190,347 units. While down slightly from prior years, the numbers reflected broader economic uncertainty rather than any weakness in the truck itself. The 1971 F-100 is significant as a transition year, marking the beginning of the end for the FE engine family and the arrival of the Ranger XLT trim that would define Ford’s premium truck strategy for years to come.