I used the American Eagle radiator made by Champion off of Ebay for my 360/904 combo. $159.95 plus shipping for a 22" 2 core with 1" tubes. What a difference in cooling over the old factory 22" 2 core!

1970 FE5 Duster 360/904/3.91's SOLD 1973 TB3 SpaceDuster 340/4spd/4.10's SOLD Moparless for now but when the opportunity is right I'll have another one.