In this case though, the pipes being much smaller than the block and radiator should help. Here is another excerpt from ChatGPT: "The small surface area of the nickel-plated pipes compared to the much larger iron block and aluminum radiator reduces their galvanic influence. In galvanic corrosion, the relative surface areas of the anodic (corroding) and cathodic (protected) metals significantly affect the corrosion rate. A small cathode (nickel) relative to a large anode (aluminum or iron) will not significantly drive galvanic currents."
Hard to know for sure until we try it, but I'm hopeful that it won't be an issue. I'll definitely be keeping an eye on the coolant as I'm expecting it to stay clear and clean.
