Need help to identify years

Hollander Interchange covers about a 10 year span for the most part. You will need to buy the right year span manual or it won't help you. There is also some A, B, C, etc interchanges that you will have to learn exactly what the differences are because it may be a one way interchange. I have the manual you need in my personal collection but I can't identify the interchange without knowing what engine this radiator was designed for. Maybe some one more familiar with the early A's will chime in with more information.