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The Iron Duke engine (also called 151, 2500, Pontiac 2.5, and Tech IV) is a 151 cu in (2.5 L) straight-4 piston engine built by the Pontiac Motor Division of General Motors from 1977 until 1993. Originally developed as Pontiac's new economy car engine, it was used in a wide variety of vehicles across GM's lineup in the 1980s as well as supplied ...
This was so named because it began with Chevrolet's V8 engines. Chevrolet big-block V8s; Chevrolet small-block V8s; GM Vortec 4300 90° V6; GM Iron Duke RWD inline 4 (early RWD Variants, later versions may use a FWD pattern, and have two possible starter locations) Jeep with GM Iron Duke inline 4 2.5L/151 in 3 (1980-1983).
The prototype for this class was named the Great Western and built in 1846. Named after the railway, it was designed to show how the 2-2-2 express engines could be improved; its 8-foot-diameter (2.438 m) driving wheels were one foot (305 mm) larger than those of the successful Fire Fly class.
The 150.8 cu in (2.47 L) is commonly referred to as the "Iron Duke" and is a Pontiac design. It was purchased by AMC from 1979 through 1983 as the base option in the RWD Spirit and Concord , the 4WD Eagle models, economy versions of Jeep CJs , and in postal Jeeps.
The standard fuel-injected 90 hp 2.5L 4-cylinder Pontiac "Iron Duke": This marked the first time a 4-cylinder engine was offered in the Firebird and was the last true Pontiac engine to be offered in the Firebird. This engine was only offered for the first few years of the generation.
The engines were also sold for marine and stationary applications. In a 1938 reorganization, Winton Engine Corporation became the GM Cleveland Diesel Engine Division, and GM's Detroit Diesel Engine Division began production of smaller (50–149 cu in (0.8–2.4 L) per cylinder) diesel engines. Locomotive engines were moved under the GM Electro ...
Iron Duke engine, a 2.5 L I4 piston engine made by General Motors; Iron Duke (pub), public house in Great Yarmouth, England; The Iron Duke, 1934 film starring George Arliss; The Iron Duke, by L. Ron Hubbard; The Iron Dukes, the name the 2nd Battalion 37th Armored Regiment; 1938 Duke Blue Devils football team, nicknamed the "Iron Dukes" Iron ...
GM Iron Duke engine The Chevrolet 2300 is a 2.3-liter straight-four engine produced by the Chevrolet division of General Motors for the 1971 to 1977 model years of the Chevrolet Vega and Chevrolet Monza .