What should the oil pressure be on a 390?

The oil pressure for a Ford 390 engine typically ranges between 10 to 60 psi, depending on the engine's operating conditions and temperature. At idle, a pressure of around 10-20 psi is considered acceptable, while at higher RPMs, it should ideally be between 40-60 psi. It's important to consult the specific service manual for your vehicle for precise specifications, as variations can occur based on modifications and engine condition. Regular monitoring is crucial to ensure engine health and prevent potential damage.