The Brockway Cabover, an iconic trucking legend of its time, was renowned for its exceptional performance, distinctive design, and unwavering reliability. At the heart of this legendary truck lay the formidable 12V71 Detroit Diesel engine. In this article, we delve into the history, features, and impact of this remarkable engine that played a crucial role in making the Brockway Cabover a symbol of power and endurance.

1. The Genesis of the 12V71 Detroit Diesel Engine

Developed by the Detroit Diesel Corporation, the 12V71 engine was part of the 71 series, a line of two-stroke diesel engines that became synonymous with heavy-duty applications during the mid-20th century. Introduced in the 1930s, the 71 series engines were initially used in various industrial and marine settings before their adaptation into the trucking industry.

1. Unleashing the Power: Engine Specifications

The 12V71 Detroit Diesel was a V12 configuration engine, with each cylinder displacing approximately 71 cubic inches. This resulted in a total displacement of 852 cubic inches (around 13.9 liters) for the entire engine. The engine's "V" design made it compact and well-suited for truck applications, fitting snugly in the limited space of the Brockway Cabover's engine compartment.

Furthermore, the 12V71 engine was a two-stroke design, meaning it completed one power cycle in just two piston strokes (upward and downward), making it highly efficient and ideal for high-torque, heavy-duty operations.