Wow, then definitely not like the full size Monty radiator.

Also be sure to check if he flushes the new aluminum radiators to remove the residue left from the welding process. As I understand it from listening to the Drive Radio radio show / podcast (courtesy of your local CO Select Napa store association/network... see www.drive-radio.com), almost all aftermarket aluminum radiator builders do not flush out those contaminants which unfortunately will react with most coolant formulations. Long story short, it causes issues if it's not first flushed out. At least that's what the hosts of the show claim. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Update: I fired off an email when I was typing this earlier (~3:15pm) and the host of the show (Donny Seyfer) has already responded! NICE!!

He says the manufacturing process leaves behind fluorides which if mixed with your old coolant can create acids that will eat your cooling system. The new aluminum radiators should be washed out with hot water and soap prior to installation.

Alternatively a polyorganic antifreeze can be used w/out washing out the radiator so long as you remove all non-polyorganic antifreeze from your cooling system.

Either way you're gonna be washing something out. <img src="/forums/images/graemlins/lol.gif" alt="" />