Hello, I just picked up a truck that is a conglomeration of 4 different trucks. It has Chevrolet, Dodger Brothers, Erskine, and Kelly parts. Plus a rear engine the old owner did not remember what it went to. My question is this, the engine is a Chevrolet straight 6. The old owner said it was a 1928. I thought Chevrolet did not make them until 1929. Which is true? How to identify the early models? It is not a 216 right? What is cool is that it is not frozen.