The matrix on the right is the Engine Casting Numbers and should prove to get you the ID, Make and Year of your Engine. Before we get into further explanations of Casting Numbers, if you are trying to decipher the VIN plate on the Trucks Drivers Side Door Jamb, you can get that inform...
2. Engine Block All Gen IV engine blocks have AFM towers and oil passages cast in. However, they are only functional on engines that used AFM. (Image/Summit Racing) 3. Lifters AFM engines use special lifters for cylinders 1, 4, 6, and 7. They are taller and have special o...