Hemi Rockers

I have Mopar Performance ( I think ) roller tip rockers in my Hemi, wondering if they are any good, reliable?

Do they look like these?

The oil for the roller tip comes from a hole in the rocker right at the shaft. So it has to squirt all the way out to the tip. When you start it cold,the oil does not get out there until it thins out. I burned up a bunch of rocker tips before I switched to 5W30 oil, and made the groove in the #4 cam journal larger to provide more oil volume to the rockers.
The Stage V rockers from FHO have pressure oiling right out to the roller. So they are better.
Below is a picture I took with the engine running when I was diagnosing the issue with the MP rockers. It captures the little squirt of oil that is intended to oil the roller. (see red arrow)

I just bought a set of Stage V rockers and they did not have the oiling holes. We drilled the holes and grooved the bushings. I was kind of disappointed spending 1200.00 for rockers and had to drill the holes.

If you buy the Stage V from Tim Banning at For Hemis Only, they will have the oil holes direct to the roller. He has them made special that way.

Like what? No picture

Ok I got them from Hemi Parts King.

Mine doesn't look like that.

I have DLI roller rockers on mine which look just like the ones in HemiJoel's pic. No issues in 10 years.

Yes, Hemi-itis they look pretty much like yours. Guess what I found today...on 4 of the exhaust rockers there weren't any oil squirt holes for the push rod cups.

an8sec70cuda and Hemi Joel have the same as mine.I think they are DLI that were sold through direct Connection.Joel,would you clarify where the oil hole is?? My comp lifters have PR oiling ability,so I sent oil up the exhaust side only.

Just curious.......do the oem rockers have a "better"(different ?) way of oiling the valve tip/spring?
Or do they also rely on an indirect splash of oil coming from pretty far away to get the job done......like it appears to be with the DLI rockers?

I think that the OEM oiled directly at the tip.

I looked through some pics of the OE rockers and didnt see any holes where they are oiling the valve side of the rocker.
At least there didn't appear to be any from what I could see.

Looks like the valve tip/guide/spring all got oiled by splash/mist.

Here are some pics showing the oil holes on stock rockers and mopar performance/landy roller rockers.

















Hopefully this helps, Joel

Joel, how about the OE exhaust rocker...... Is there a hole on the spring side of those as well?

Looks like the pushrod oiling hole on the DLI exhaust rocker is pretty far away from the pushrod.

Somehow the pictures got mixed up. Here is the stock exhaust tip.

I made every dli roller rocker arms from 1999 to 2007

Wow!!
That's a nice piece of trivia right there!!

I had forgoten you had worked at DLI.
It's been awhile since you posted those pics.

That's really cool, you working for the legend Dick Landy! You probably built my rockers and repaired the damaged ones I sent in.