I tend to hoard them myself. I have one that definitely needs to be recored. The one in the Blue Truck was a new aftermarket brass/copper one when I got it. I have another one that I bought from a guy for $100 a few years back. He said that before they parted the truck out, it worked fine with no leaks. Then there's the ones that are in the Ex Wife and my treasure hunt truck. They appear to be fine, but I haven't done more than pull the caps off and look inside. Overkill? Nope. Not at the prices of new ones and recores.I had horrible luck with aluminum radiators, went back to stock. Also have a second stock radiator and tempted to have it re-cored just so I'm ready should something happen.
Probably something to do with brass being more structurally sound making better frames and tanks, while copper is a better heat transfer material better for the tubes and fins. Although this is just a guess on my part.I wonder what the purpose of the Brass and copper mix is. Why not make the entire assembly out of copper and GTAW all of the joints?
Copper has considerably superior heat transfer compared to aluminum, the only issue with radiators is that they are soldered together whereas aluminum is welded.
Probably something to do with brass being more structurally sound making better frames and tanks, while copper is a better heat transfer material better for the tubes and fins. Although this is just a guess on my part.
In my experience, brass is less malleable than copper.
Sent from my SM-G988U using Tapatalk
My OEM rad sprung a leak about 6 years ago on the 91 so I decided to pull the trigger on a Mishimoto off of E-Bay. It was a coupe hundred less than the one I bought the previous year for the 89 that came directly from Mishimoto. The E-bay Mishimoto rad leaked from day one. Just seeping , but enough to be annoying. The one bought directly from Mishimoto ,so far, is leak free. The leak progessively got worse. I finally had enough and decided to go on the search for somebody to repair the OEM one(which I saved). As luck would have it there is a company in my area that repairs radiators. They informed me that typically, an aluminum cant be repaired , but copper and brass can. I handed over my radiator and 4 days later got it back and in the truck. Im happy to report its leak free. The company, Mac's radiator repair, has multiple locations in Oregon and one in Idaho. Definitely getting harder to find somebody willing to repair radiators. Their customer service was great, and the price I felt was reasonable(590.00). Hopefully this helps somebody out!