I wish I could remember the details on my Rad. It was custom made for the car and we got a discount because there were three people buying but sadly I didn't do the organising. All I know is that it's a big bugger! I've tried to mount it as vertical as I can as I believe that to be the best way to get air through. I'll let you know how well it works when (if) summer comes!
If you want me to try and get the details of my rad then PM me or reply here and I'll see what I can do. If you want pics of what I did then just ask!
Cheers...