The 1966 Ford F-100 offered a mix of inline-six and V8 powerplants, including the 300-cubic-inch inline-six and several V8 options in the 289, 352, and 390 cubic inches range.
For 1966, Ford’s light-duty F-100 could be ordered with different powertrains depending on trim level, cab/bed configuration, and option packages. The lineup blended Ford’s reliable inline-sixes with a set of V8s—from smaller displacement mills to larger, more capable big-block-like options—designed to cover everything from daily driving to heavier hauling. The following list reflects the engine options commonly available in 1966 F-100 pickups.
Engine options
Below are the engines most commonly associated with the 1966 F-100, spanning inline-sixes and V8s.
- Inline-six engines: 240 cu in
- Inline-six engines: 300 cu in
- V8 engines: 289 cu in
- V8 engines: 352 cu in
- V8 engines: 390 cu in
Availability varied by model year, trim, and option packages, so some engines may have appeared in limited runs or specific configurations.
Performance and considerations
Horsepower and torque varied with carburation, gearing, and transmission choices. The 300 cu in inline-six offered robust low-end torque and reliability for everyday work, while the 289, 352, and 390 V8s delivered progressively more power for heavier payloads and higher-speed cruising.
Summary: The 1966 F-100 provided a versatile engine lineup that balanced efficiency and capability, giving buyers options from a durable inline-six to a range of V8s tailored to different hauling and driving needs.