If you got the kit with two large green and four small black o'rings, that is the correct kit.
If you got the kit with two large green and four small black o'rings, that is the correct kit.
The problem with aluminum is corrosion. It's /very/ prone to corrosion, especially when you have dissimilar metals involved.Hope so! Lol
From what i gather on heat transfer copper is the best, aluminum is second, and brass is trailing far behind. I believe the copper radiators are mainly brass. Ive got a turbo and im cranking it up, felt like i could some extra cooling power.
The problem with aluminum is corrosion. It's /very/ prone to corrosion, especially when you have dissimilar metals involved.
Typically, aluminum radiators come with a sacrificial anode to help protect it... but when that gets used up it will still corrode.
Also, your sacrificial anode(usually zinc) will turn into powder as it does it's job, which might make having a coolant filter a good idea.
Pretty sure that the /quality/ of the aluminum radiators available is sketchy at best. I've heard lots of stories about replacing them every couple of years as they leak.
Brass/copper radiators may or may not be the 'best' metal when it comes to raw thermal transfer, but I'm not convinced it matters.
On multiple trucks of mine, I've had more trouble getting the truck up to temp in cold weather than any issues of overheating.
Unloaded, they tend to stay right at the 180-190F mark, cycling the thermostat as needed.
Loaded, well... I've seen 220F once or twice, when throwing all 250 HP into hauling up a long grade in the middle of summer.
However... I do know that timing makes a /massive/ difference here. I took a trip last year with a hurriedly put together setup that was several degrees retarded.
With a big camper on, in the middle of summer... I occasionally had to back off to keep it from getting above the 220F limit, dropping below 70 a few times on hills.
Once there, I advanced the timing by like 5 degrees or so, and on the way back... No issues. More power, no temp problems and I maintained the speed limit the whole way.