What are the potential hazards of replacing the valve cover with an aluminum alloy one?

[McBarrett]

Replacing the valve cover with an aluminum alloy one does not pose any hazards. The main reason car owners consider switching to aluminum alloy valve covers is that the original valve cover gaps are prone to oil leaks. Indeed, an aluminum alloy valve cover can provide better sealing. However, during installation, it's essential to check whether the rubber gasket has aged or is damaged. If the gasket is aged and not replaced, even switching to an aluminum alloy valve cover won't completely resolve the oil leakage issue. Additionally, car owners can opt for engine oils that help soften the gasket, as a softened gasket can enhance the sealing performance of the valve cover.