I've pulled a good radiator and a heater core from a parts car I bought a couple of months ago. I have flushed them with clean water and now I want to store them until needed. Any advice? Should I seal or otherwise cover the openings after letting them dry out? Protect them from temperature fluctuations ie. extreme heat then cold?
Any help appreciated. Thanks!

Thanks for the replies. I'll keep them stored in a dry shed. Hopefully they will still be good when I need them.

Dear blue 940,

Hope you're well. Most things do well if stored in a cool, dry conditions. Cool means temps below 60°F and humidity below 50%.

For metal items, dry conditions matter most.

Hope this helps.

Yours faithfully,

Spook

No special handling required.