LS Motor Mount Plates
These bolt to the mounting holes on the side of the block of 4.8, 5.3, 6.0, and 6.2L GM engines. You can weld whatever you want to them to get your motor solidly mounted in your chassis. They're 1/4" steel so you don't have to worry about anything once they're in place. Comes with two plates total, enough to do one engine.