This is a Continental Renault R688 engine core. We have disassembled, inspected and reassembled the engine. It is a low hour engine that has been stored in a shop for many years. At some point water got into the cylinders and rusted the bores. We have new liners are available for this engine and any other parts you may need. The crankshaft and bearings are perfect. This engine was used in Case skid loader model 1830, Swinger wheel loader model 100 and other applications. I have an unopened head gasket set that is included in the purchase of this engine.