Solid roller lifters...

67mprfan said
Yep I posted in post #23

Do you have experience with these?

PRH said
BAM lifters ....

This is the opposite side of the lifter in relation to the oil gallery.
The small pushrod oil feed hole is only on this side.
Oil from the gallery is fed from the other side thru the big hole, then it’s an edge orifice scenario to get oil into the small hole.
My customer isn’t going to use the pushrod oiling, so the small hole being exposed at full lift isn’t a concern in that aspect.
You can see that if the small hole is being exposed, then the top of the big hole is getting close to the top of the lifter bore.
So, the test is to see if there is any significant leakage around the top of the lifter bores when the lifters are near full lift.

View attachment 1715943674

What is full lift in this case?
I started going deeper into the topic, and just realized that for example Crower lifter would force me to buy new pushrods, practically all other options require shorter pushrod than I had which basically means I can make my own set to fit.
Almost bought the Crowers... but realistically they are going to run me +180$ which makes them 900$ set in my situation.

Now again older style comp 829-16 seems like a cheap way out, but perhaps I should jump out of 200$ extra and get something technically superior... New 96829-16 lifter from comp seems to be good, has larger diameter .800" wheel and direct oiling, BAM 2016-16 also has it all and is 25$ more, howards has oiling but smaller diameter wheel and some negative reviews already so I'm skipping these.
My lifter has 1.49" seat height, crower is 1.34", newer comp 1.79", old comp 1.79", bam 1.62". I even have exact pushrods set for BAM lifters so it saves me some time.
Do you have access to BAM lifters?
I'm not using pushrod oiling also.