That's true F A S T.. - The 4.9 North Star 32-Valve V8 Caddy engine FITS!, But I'm thinking more around the 3800 Supercharged V6 as it is also a bolt-in
This is part of the sub-frame made to go under the car to relieve any stress that was added when removing the roof..
Of course it will also be powder-coated in the hammered color (as it will be a fully removable X-member)
Rob