If you are going with the electric fan option, here's a link to an auction on e-bay. I've bought lots of stuff from this guy and always been happy.

http://cgi.ebay.com/ebaymotors/16-H...mQQcategoryZ34201QQitemZ4628398070QQrdZ1


'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi