Motor mounts

Any suggestions on motor mounts for the 340 factory block? BPE 4.250 crank, 442 ci. Dont want any troubles with factory mounting not being up for the task. Have Moroso solid mounts in there from the last motor.

Thanks for your input, Rob

By the way, I need a set of 340 brackets. I made the 318 brackets work but there not up to holding on to a bigger motor.