Bob did a terrible job. He was supposed to have rebuilt my 3.0L Ford Ranger. I paid Bob and took the engine home and reinstalled it into my truck. I started the engine and it knocked. I drove the truck with the knocking engine back to Bob for him to listen and he said I damage the engine while installing. I removed the engine and tore it down and looked at the cylinders and they were pitted. I reassembled the engine and used it for a core. I bought a well rebuilt engine from S&J Engines in Spokane, WA. They shipped a short block to my driveway. The core was picked up and shipped to S&J. The S&J engine was far superior to anything that Bob could have done.