Hot Rod Forum banner

1966 Mustang 289 Engine Tag

4K views 1 reply 2 participants last post by  red65mustang 
#1 ·
I found a tag on my newly acquired 1966 289 engine that I would like to decipher. it is as follows

289 C 66 10
5 M E 231 S

Can anyone help??
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top