Full Set-Head Set & Conversion Set Gaskets
In case of Overhauling Full Engine all the gaskets components are required which comes in Full Set Gasket unit (Engine Overhauling Gasket Unit).

While opening top engine Head Set Gasket components are required.It is also known as Top Set Gasket unit/Half Set Gasket Unit.

While opening the bottom portion of the engine, the components required come in Conversion Set. It is also known as lower engine Gasket Unit.