426 hemi oiling question

[Beekeeper]

So I thought I was getting close to firing this hemi up but after oil priming it I’m not so sure.
Stock block (1970) with a solid roller cam and crane ultra pro lifters and non oiling pushrods.
When priming the lifter that is nearing the highest point of lobe lift is bleeding oil because the top of the oil notches are slightly above the lifter bore. I turned the pump with a battery drill on low so just guessing around 500 rpm and have 50 psi with 10w-40 oil. Should I be concerned with this
because the mains get oil from the passenger side main gallery.
Here’s cam specs

 

[pnora]

I think you are OK as you do have pressure.

 

[Fran Blacker]

How big is your pan, 7 qt.. I'd be worried at higher rev's sucking the pan low.

 

[Beekeeper]

How big is your pan, 7 qt.. I'd be worried at higher rev's sucking the pan low.

Yea 7 quart pan.

 

[R413]

It will have 75 with the engine running. I don’t like the lifters coming so high, call crane and ask them

 

[Fran Blacker]

Be curious what engine builders think. If you decide to go with it as is I'd have one eye on oil pressure gauge at sustained high revs. Shame to tear engine down to have lifter bores bushed. Buy a cam with less lift?

 

[Beekeeper]

It will have 75 with the engine running. I don’t like the lifters coming so high, call crane and ask them

I will do just that.

 

[Beekeeper]

Be curious what engine builders think. If you decide to go with it as is I'd have one eye on oil pressure gauge at sustained high revs. Shame to tear engine down to have lifter bores bushed. Buy a cam with less lift?

I got these parts as a package from Ray Barton. Told him everything about the the block
and that this would be a street car. I could possibly go with a smaller lift cam I plan to get a good measurement with feeler gauges on how far up the oil notch is above the bore.
As usual I really appreciate your guys advice here hence the reason I’m here all the time

 

[Hemirunner]

My cam card

 

[PRHeads]

The problem is with the lifters.

It’s not the lift.
Higher lift is created by lowering the base circle, not by making the lobe “taller”.

Many lifters available for BBM have the oil bands/relief cuts that are problematic.
A lot are designed for aftermarket blocks that have taller lifter bores.

If you only have a couple that have the problem, it would likely be okay.
If most of them are like that, I’d be looking to rectify it.
Any oil leaking out around the lifters is oil that’s not going where it’s needed.

How about a couple pics of the problem area.

 

[Beekeeper]

The problem is with the lifters.

It’s not the lift.
Higher lift is created by lowering the base circle, not by making the lobe “taller”.

Many lifters available for BBM have the oil bands/relief cuts that are problematic.
A lot are designed for aftermarket blocks that have taller lifter bores.

If you only have a couple that have the problem, it would likely be okay.
If most of them are like that, I’d be looking to rectify it.
Any oil leaking out around the lifters is oil that’s not going where it’s needed.

How about a couple pics of the problem area.

Yea it does seem like a small base circle on this cam but have not measured it. I will get some pics of the problem area and post them here this evening

 

[Beekeeper]

My cam card

View attachment 1160790

Which lifter are you using?

 

[Beekeeper]

Here’s the problem this one is at peak lift. The number 7 intake is just barely exposed and leaks by enough that oil pressure isn’t getting to the rest of the lifters on the left bank,

 

[Fran Blacker]

Looks like somebody cut some off the lifter bores?

 

[Beekeeper]

Looks like somebody cut some off the lifter bores?

No they haven’t been cut at all

 

[Fran Blacker]

Notice the lip at the top of bore, that's why I thought they were cut.

 

[Beekeeper]

Notice the lip at the top of bore, that's why I thought they were cut.View attachment 1160892

Yes I’ve seen some blocks that are more pronounced but if you look closely the casting texture is still present on the tops.

 

[33 IMP]

The Crower solid roller I use. No band.

 

[Beekeeper]

The Crower solid roller I use. No band.

View attachment 1160917

no oil relief cut would do the trick for sure. I’m hoping that Ray Barton will help me out with lifters that will work since he picked the ones that don’t.

 

[33 IMP]

Went to Crowers site, they don't show the no-band lifters anymore. But, according to eBay pictures, comp cams 829-16 don't have oil bands. Endure-x, $550 usd. Seems too cheap for roller lifters, nowadays.
Edit: b-engine part # . Maybe a different # for a hemi?
2nd edit: listed by Barnett performance, they caution that the pics are provided by manufacturer, and may not be right.