I posted this a while back, but with the recent piston talk, I'll do
it again.
Check out these pistons custom made for an EJ22 turbo to be used in
an airplane. Not sure about prices but he tells who made them.
This guy is a good tech.
http://www.sdsefi.com/air11.html (general 2.2T info)
http://www.sdsefi.com/air17.html (disassembly - very informative)
http://www.sdsefi.com/air21.html (reassembly w/ custom forged pistons)
Forged Pistions (Again)
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Forged Pistions (Again)
I need to add a link to these pages, the pictures alone are very nice!