stock LA360 with a small cam, and headers. The oil pressure when cold is never over 45psi, when warm it is at near zero. I replaced oil with 20w50, in hopes that it would increase some pressure, it may be 10psi when warm now, still never increases above 45psi no matter the rpm. Next step replace oil pump, if the bearing clearances are creating the issue I don't want to pull pan in car and change pump. Ay thoughts?
