I found out that ericthepoolguy created a working V8 engine shown at http://www.thingiverse.com/thing:1911808 I found out that the engine block was too big for my 3D printer. I wanted to use Netfabb to cut the engine block in half but I ran into problems. I wish that I have a larger 3D printer. I found out that MakerFarm has a sale on their 12" 3D printer at http://www.makerfarm.com/index.php/12-pegasus-kit.html/ but I don't know how long the sale will last.