Mack Daddy. Grove City, PA
Mack Truck B Series Thermodyne Diesel
The Thermodyne diesel engines were the Mack engines through the 50's and into the 60's, following the early French Lenova diesels.
Thermodyne engines provided simple, dependable power for a new generation of post-war trucks in a rapidly growing country. The Mack truck reputation for toughness grew and grew with these steady, simple powerplants. Horsepower was not their long suit. (the range was from 170 to 250 horsepower depending on the series and the set-up) A relatively narrow power band necessitated transmissions with a lot of gear selections. (Quadraplex, Triplex and Duplex married box dual transmissions were the most common offered from Mack) Big rear end ratios (7:--/1, 5.--:1 etc.) were the norm. Remember that really good roads were just being built, interstates were brand new, and high cruising speeds were not necessary. Moving loads day after day was the mission, and a Mack could make you money with its' simplicity and dependability.
Mack Daddy. Grove City, PA
Mack Truck B Series Thermodyne Diesel
The Thermodyne diesel engines were the Mack engines through the 50's and into the 60's, following the early French Lenova diesels.
Thermodyne engines provided simple, dependable power for a new generation of post-war trucks in a rapidly growing country. The Mack truck reputation for toughness grew and grew with these steady, simple powerplants. Horsepower was not their long suit. (the range was from 170 to 250 horsepower depending on the series and the set-up) A relatively narrow power band necessitated transmissions with a lot of gear selections. (Quadraplex, Triplex and Duplex married box dual transmissions were the most common offered from Mack) Big rear end ratios (7:--/1, 5.--:1 etc.) were the norm. Remember that really good roads were just being built, interstates were brand new, and high cruising speeds were not necessary. Moving loads day after day was the mission, and a Mack could make you money with its' simplicity and dependability.