An engine rebuild is a process where a vehicle's engine is disassembled, inspected, and repaired or replaced as needed. This procedure aims to restore the engine to its original performance and efficiency. Common reasons for an engine rebuild include excessive wear, overheating, or mechanical failure. During an engine rebuild, components such as the cylinder head, pistons, and crankshaft are often replaced or refurbished. Mechanics may also replace gaskets and seals to prevent leaks. This process can extend the life of the vehicle and improve its overall performance, making it a valuable option for car owners.