Advice small block K frame with Schumacher conversion mounts for a big block

I set the motors in there just like you see, but not with the added weight of the alt/pump and other stuff on the front of the motor. I make sure the bolts are torqued in place for the manifold, and the plate is snugged very well too. Those are iron heads, but aluminum would be no worry if it's all torqued down im sure.