This is a simplified model of the Summit Racing SPC Pro LS Engine Block. It's an aftermarket block that can push over 2000 horsepower, which is designed to go in most Chevy sports cars, SUVs, and sedans with the V8 engine. This is my own simplified version (so it can be printed) of the design. It's a smaller, scaled-down version meant to be a showpiece for petrol heads.

Just print it out, remove the supports, and it's a cool showpiece.