Seems Comet #2(200/Ford-O-Matic...)has been gurgling 'an heaving it's guts out over the past few days(in this awful heat we've been having...),so I figured it's time to replace it. I called a place in N.J. and they said they'll have a new ALUMINUM unit ordered on Monday,and ready to pick-up on Tuesday,all for $179. Any pros 'an cons about the new Aluminum Rads out there? Personally,I've never seen a STOCK Aluminum replacement Rad for a old Ford/Merc like mine before. Back in March,I bought TWO STOCK replacement Rads for two of my Nova's(Six-Cylinders...)and before that,in Nov. 2006,a new Rad for my '69 Caddilac Fleetwood........ALL of these were ordinary Copper replacements. Just wondering that's all. Thank's. ~OO6.