return engine cores to the U.S.

[sunnysky]

I am importing two engines into the U.K from Continental. Part of the deal is that I have to pay an $8500 core deposit on each. Does anyone out there know (especially European members who may have done this) how U.S. customs treat these cores on importation into the U.S. ?
I have posed this question to Airpower and Continental, both of whom can't give an answer.(which I find quite bizaar as Continental have been in the business of building and selling engines worldwide for over 50 years ! )
I have also contacted U.S. customs but it is proving difficult to get any sensible information from them.
I really need to speak to someone who has done this. Can anyone help please ?

[Dale Campbell]

Try Reims in france. They should be able to help since they delete with the 337 import & export thing for years.

[skymaster]

my take is that it is usa product going in for repair. No tax. bill of lading must have value. J