The engine is technically a v225 Ford Engine made by Cat. If you look at the valve cover in the kit, it says V225. Jim is right, the V225 was just an 1160 Cat. This would have been early 70s. The 1100 Cat engines were very similar to the 3208 Cats found in later models. I converted (for the most part) one into a 3208 for my F8000 that I am working on now.