Black,
I was recently sparked onto a search for a thinner rad by some comments in another thread and I am looking at a heatercore from a 2001 olds aurora. My only concern is that they seem a little thick in the fins dept which is gonna be murder on my fgl's but I am sure you guys are gonna be using something more powerful anyways.
http://go.delphi.com/intranet/home/i...DS|vID=HC20006
http://catservices.wrencheadpro.com/...D/15-60143.gif
and as for single pass there is always my ghetto method of drill a hole on the bottom tank, add a barb and viola instant single pass hc. Worked wonderfully with my caprice core!!!! BTW, on a side note, I had a 1c temp diff between my fgl's and Sunon KD1212PTB1-6AF (of course we are only talking a temp probe but hey). And being the psycho that I am when it comes to silence, nothing compares to the quiet of the fgl's (have'nt tried the panaflos yet though).