A new 4 cylinder 2.3L OHC engine has been developed for introduction in 1974 Ford Pinto and Mustang vehicles. The reasons for tooling a new engine of this particular size and configuration are both interesting and logical in light of the background explanation.
The engine has several original features including a die cast aluminum intake manifold and a unique automated method of setting ignition timing. Highlights of the development program include the intake manifold and the lubrication system. Several durability problems were uncovered during the program and details of the causes and solutions are described.