I have recently reaquired an Fe motor and trans that I owned, years ago, in a 67' Galaxie. Back in the day, when I purchased the car, I was told the the engine was a 390 and it had been rebuilt and it was .030 over, etc. Today I noticed that there is a brass tag riveted to the front of the block, under the head, on the passenger side. The tag reads RC-26 and then 76094 below that. If anyone has an idea what this tag means, please, let me know. Thanks.