My ERA with a 351W had an
oil cooler and a manual fuel pump when I bought it from the first owner. Everything fit, but not much room in that area. Had to use a short
oil filter to clear the frame. I removed the
oil cooler because my oil temp was not getting much above 140F (I also have a large capacity Canton oil pan, 7 or 8 quarts I think). Without the oil cooler my oil temp is around 180F where it should be. Unless you are racing, the oil cooler is not useful. My $.02.