Hi Mr. Johnson
I noticed this discussion and as I have three 261 engines and was about to order some small stuff I ordered two bushings.
So if you are in need in the spring I will send you one. The photo from Classic Parts makes them look like made from stainless.

Remember, Stay warm.
Howie

1 1955 Chev one ton. 261 engine

3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine