Rocker arm rattle 327 amc
3 Answers
Guru9LM2GH answered 3 years ago
The rattle could be a collapsed lifter. Oil pressure is dropping due to heat and oil thins out when temperature increases.
beatupchevy answered 3 years ago
you may have to set the valve/lifter lash on those , I would say 25 psi is ok
I think your engine is worn. What weight oil do you use?