Very interesting topic to me

We've had a similar discussion over on Team Chevelle recently:
http://www.chevelles.com/cgi-bin/for...c/6/5546.html?
Chris Carney, who has a very original 350hp T400 69 SS396 Chevelle with factory a/c, has a BR radiator in his car and it is so coded on his build sheet. I have a very original 325hp T400 69 SS396 Chevelle without a/c, and I have a BW radiator. My build sheet, however, shows 'BC' in the radiator box (#121 on the Body Broadcast sheet) so I'm kinda
dreemz, I'm curious, where did you get your info about the radiator codes?