The 149 Series described in this paper is Detroit Diesel's new entry in the 500 to 1300 horsepower engine class. Designed for ruggedness, durability and maximum serviceability, it features a unique block construction with encased pot heads, overhead camshafts and blowers. The most unusual component of the engine is the “pot type” cylinder head which fits into a bored-out area of the block at each cylinder. It offers a significant advance in serviceability, mechanical and thermal characteristics. The overhead camshafts are easily accessible and provide stiff, rugged valve and injector drive mechanisms.
