Do you have to resurface the head when replacing gasket on a gst?

Yes, it is recommended to resurface the head when replacing the gasket on a gst engine. This is because the head is a critical component that seals the combustion chamber and ensures proper engine operation. Over time, the head can become warped or damaged, which can lead to leaks and other issues. Resurfacing the head ensures that it is flat and smooth, which helps to create a proper seal and prevent potential problems. Additionally, resurfacing the head can help to improve engine performance and fuel efficiency.