Lincoln-Zephyr - Specifications

Specifications

Designed by John Tjaarda (1897–1962), who was fascinated with airplanes, with a Cd of 0.45, the body was monocoque construction and very rigid, but surprisingly light for its size. The first model had a weight of 3,350 lb (1,520 kg).

The Zephyr was powered by a small 75° V12 engine developed from Ford's Flathead V8 and unrelated to the larger K-series Lincoln V12 engines. The valve-in-block flathead engine was quite compact, allowing a low hood. But like the V8 Fords of the era, the Zephyr V12 often suffered from hot spots due to exhaust passages through the cylinder block. In addition, the earliest Zephyrs suffered from poor oil pressure, resulting in upgrades to the oil pump.

The 1936 to 1939 models were 267 in³ (4.4 L) with hydraulic lifters added in 1938. 1940 and 1941 cars used an enlarged 292 in³ (4.8 L) engine, while 1942 and early 1946 models used a 306 in³ (5.0 L), but lower compression ratio because of the iron heads. Late 1946 to 1948 Lincolns based on the Zephyr used a 292 in³ (4.8 L).

The original engine had 110 hp (82 kW) and gave the car a top speed of 90 miles per hour (140 km/h). Suspension was by Henry Ford's beloved transverse springs front and rear, with dead axle front and torque tube rear, already seen as outdated when the car was introduced. Brakes were cable-activated for 1936 to 1938; 1939 and onwards were hydraulic. The Zephyr was the first Ford product to have an all-steel roof, except the late 1931 Model AA truck.