This needs to be gone over or rebuild by someone with experience building engines. Assume it needs to be rebuilt! I have no information on it other than receipts from previous owner as he rebuilt it. He said it ran, but all I could do was get it to spin, and it felt "restricted" or bound in some way; maybe bearings not installed correctly, or tolerances were too tight, so it wouldn't spin freely. A lot of money went into rebuilding it based on receipts. Come by and feel free to look it over. Head is separated from block, so you can at least easily see pistons and cam... Text with any questions. I will sell to first person with cash that shows up. I will not hold; First Come first serve. Located in Palm Beach Gardens, FL by Palm Beach State College.