Should I File for Record Before or After Replacing the Engine?

[McChristian]

Replace the engine first and then file for record. Below is an introduction to the engine: Introduction: An engine (Engine, motor) is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (such as gasoline engines), external combustion engines (such as Stirling engines, steam engines), and electric motors, among others. Structure: The engine block serves as the framework of the engine, providing the installation base for all its mechanisms and systems. It houses all the main components and accessories of the engine, both internally and externally, and withstands various loads. Therefore, the engine block must have sufficient strength and rigidity. The engine block assembly mainly consists of parts such as the cylinder block, cylinder liner, cylinder head, and cylinder gasket.