I actually work closely with Alcoa and several other metal suppliers. We manufacture industrial insulation systems with aluminum and stainless jacketing…and I have to have all metals PMI tested by a 3rd party inspector so yea…I know a thing or 2.
I don’t personally know who casts Whipples end tanks or what core they use…But I’d venture a guess that neither do you. I do know that their welds are actually professional looking.
And yes…the Ultimate parts look like a kid welded them. Sorry if you don’t like my opinion…but you’ll live. Oh…and the Whipple doesn’t cover the entire radiator…not even close.
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