[NOT A TA]

The body mount brackets welded to the subframe under the cowl have gotten rusty and thin on a lot of 2nd gens over the past 35-45 years. A thick washer modified to fit in the bracket thats plug welded with a couple beads along the sides will stiffen it up. Many of the 2nd gens had no brace for the cowl mount bracket, however WS6 cars had a short brace that attaches to the frame rail and bracket adds strength and some Camaros had a bracket that went from frame rail to body mount bracket to engine crossmember. The frame I'm using was from a WS 6 car so I have the short brackets but I may try the longer Camaro brackets or make my own once the engine is in place and I can check for header clearance.

Frame on the right in the first pic below had a washer welded in previously where the bracket had rusted quite a bit. On the left is my new frame and you can see even though the frame itself has no rust the area where the original body mount was is pitted.