Anyone just make a solid mount for a 360-400???

Mancini racing has them. Moroso P/N 62540 for SB's. 38 bucks.

He's looking to swap a 400 block in place of the 360.
I made the same mistake until I realized this was in the "Big block A-body tech section"!

Schumacher has conversion mounts but I'm not sure if the solid Moroso mounts can be used with them.