When we ran a full service chassis fab/turn-key hot rod shop a number of years ago, it was always useful to have threaded things around to weld into the frame for some kind of mount, etc.
Here’s a list of all our threaded things for your reference:
Rubber Insulator; small block Ford, ea
Product Details
MPN: 2287
Stock-style rubber insulator for side mounts, to be used with our #F018 motor mount kit. Engine block holes are on 7" centers.
2 required per engine.