When i was 15 my best friends dad got us a 3 cylinder diesel refridge motor off of a old semi trailer. We had the motor sent off for some machine work and got it back together. Had an old case lawnmower we beefed to handle the power. Then we ran out of money and had to sell it. We made a decent amount of money off of it. I wish I took some pics, never got a chance to pull it.