how long should it take for oil to get up to the rocker arms ?
I was helping a buddy with his camaro. We put in a 350 he picked up.
At first it was pretty quite but I noticed after changing the oil (castrol 10w 30).the lifters or something in the valve train is pretty noisy. The noise will go away but it takes a couple of minutes for oil to get up to the rockers .
thanks green 79

If the hydraulics havent pumped up by 3 or 4 revolutions of the cam,, something is wrong. Cut the filter open and see how ugly things look.

is it an comp xtreme energy cam? Also are the pushrods spinning?

I was afraid that something was wrong .what could the problem be ?Can the dizzy go in with out engaging the oil pump?.The push rods are spinning also
thanks green 79

how long should it take for oil to get up to the rocker arms ?
I was helping a buddy with his camaro. We put in a 350 he picked up.
At first it was pretty quite but I noticed after changing the oil (castrol 10w 30).the lifters or something in the valve train is pretty noisy. The noise will go away but it takes a couple of minutes for oil to get up to the rockers .
thanks green 79

If the noise does go away in a few minutes, it typically means that the lifters have lost their prime when sitting. After running for a little bit, they regain their prime, and continue to deliver oil to the rocker tip.

This problem is more prevalent with 1987+ newer motors, especially with roller lifters. But it isn't odd for it to happen to older motors with standard hyd lifters. Usually a hard run up & down 2 miles of road will quiet down the lifters (not recommended, but works)

Verify the condition again, and think about adjusting the rockers or replacing the lifters

I had a extreme energy comp cam do this for over 3 min with the engine turning. I primed and primed, and finally had enough beers in me to say the hell with it.

Its held up now for 10 months, with many beatings.