motor plate.

to buy they're 1/4" aluminum, but i may get it cut from steel (possibly stainless). i'll speak to my guy who cuts stuff like that for me.
neil.
COOL , ONLY PROB WITH ALUMINIUM is metal fatigue after a few years , but it is so muck lighter .i use that for skid plates on my truck , but no real stress on that so of no concern .
good luck