[martinkh]

Just go to your local radiator shop, they fix'em and they stock common replacements. They know what a 4 core is. It is really just a big block radiator. I put one in a '71 El Camino once, and then in a '77, and the 1970 I just bought has one already (it would have been on top of the list to get one otw). The trans cooler in these is bigger than stock too, so you really don't need a tranny cooler and the risk that comes with them in this case, unless you have a huge cam, slippy converter, and like to race from stop lights to stop lights in 100 degree weather.