I picked up a 292 exhaust manifold last year in Idaho. I went to a garage sale and for $2.00 got a old suitcase. Packed it in foam rubber and checked it as luggage and boarded plane. Picked up after flight with no problem. Days later opened suitcase to find they had opened and checked. There was a printed note inside telling me they had checked. I can just imagine this day and time if you carried that thing through the air port that it would throw those folks into a tizzy, especially being on a international flight !!