That particular casting is correct for the '74-8 PU and some motorhomes and vans. The '76-8 Van used a different design driver's side. It will also fit the '72-3 PU's but it just looks a little different. '71 and older PU's used one with a shorter outlet section. The passenger side is the same as the early C-body big blocks, on the one without the heat riser......'62?-66.
