Topic: 1969 351W GT Sportsroof "M" code engine lift hook?

[DeadStang]

I'm working on my GT, just doing a tune-up and had a lot of trouble replacing one of the spark plugs on the passenger side.  Bolted to two of the exhaust manifold bolts was some sort of lift/hook/ring looking thing...  I have several '69 351W cars, although the others are all H-codes, and have not seen this before.  Is this a factory lift hook, or something someone installed over the past 40 years when pulling the motor?

Thanks.

[J_Speegle]

Something  like the one below?

These were on every engine -  but removed from most at some point

[DeadStang]

Yes, exactly like that!  Thank you.  It sure was a PITA to work around, but I thought it was kind of cool.