I’d like to get a couple of fairly large aluminium casting pieces tumbled to clean them up.
Does anyone here have a source that may have a large to “really really big” tumbler?
Largest single casting is about the size of a bare V8 engine block.
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Matt at MCS Products in Lewisville recommended trying SOT Abrasives in Richardson.
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Do either of them know Kevin Bacon directly?
Don’t know, don’t care??? 
I had Zims Autotechnik smooth out my Al intake from my 944T back in the day… but that was almost 15 years ago… did a great job back then, and they’re still a top notch shop.
Ian, Thanks for that!
Zim’s - I haven’t thought about them in ages. I used to moonlight for a machinist that did some of Al Zim’s work. He would tumble 356 engine cases for Zims.
That Machinist passed away several years ago.
Looking back I wonder where his Stuska Engine Dyno ended up.
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