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:
Small block Chev urethane insulator, PR
Product Details
Brand: Energy Suspension
Model: Engine Mount
MPN: 31114G
Country/Region of Manufacture: USA
Energy Suspension’s urethane insulators offer a more secure hold than traditional rubber mounts, reducing startup shake and minimizing engine vibrations through the frame while driving. After a successful installation at 40,000 miles on my '32, I wouldn’t go back to rubber mounts for future projects. The kit includes a pair of urethane insulators, and Energy Suspension recommends using the preload plate for optimal performance. Please note, the frame plate shown in the picture is not included.
Universal Engine Mount Kit, Small or Big Block Chev, PR
C$75.00
Universal Engine Mount Kit, Small or Big Block Chev, PR
Supports the engine on the frame mount, not a thru-bolt.