A running motor is not unlike a beating heart. Both are perfectly designed to bring life to an otherwise inanimate beast. And now both can be 3D printed. DIYer Eric Harrell, on the heels of his successful Subaru EJ20 flat-four engine build, has constructed a working Chevrolet Camaro V8 engine using 3D printed parts.
According to Chris Perkins for Popular Mechanics: "Builder Eric Harrell modeled every individual component of the LS3 from pictures, repair manuals, and CAD files from the internet. Harrell says it took 200 hours to print all the parts, including 72 hours just for the engine block. If you want, you can download all the files to 3D print an LS3 yourself, and Harrell will sell you all the extra hardware to make it work. If you don't have a 3D printer, he'll even send you a complete engine replica.
What's especially great is watching Harrell's build timelapse. It comes together exactly like a full-sized LS3, and when it's done, an electric "starter" motor makes it spin like one too."