This engine came out of a 1984 Toyota. Previous owner had overhauled head, replaced headgasket, timing chain, water pump, etc. Shortly after this work the engine developed a knock. I bought the truck for the bed and axles, selling this engine as a core. Not sure what is knocking as I did not tear the engine down. Price is for long block (head, block and rotating assembly), no accessories, electronics or fuel management.