parts id help needed
 

I got a lot of parts on ebay and it had a few without tags. Normally I would just toss them in a box never to be seen again, but these are worth something and it would be a shame to toss them just because I didnt know what they were.

Any help is appreciated.

Engine mount
http://i821.photobucket.com/albums/z...pszwsb8udu.jpg

Piston
http://i821.photobucket.com/albums/z...psev8adiha.jpg

Servo Mount
http://i821.photobucket.com/albums/z...pssqq8f3wh.jpg