Tubing the gallery with a twist

yellow rose said
I have drilled both bushed lifter bores and tubed lifter bores. I try to tube everything that has over .500 lift any more, even hydraulic ****. And this is why. You can't control where that oil gallery is.

You don't need to bush the bores.

Tube it like you are saying, peen the tube and then make sure the lifters don't bind in the bore THEN drill a 3/32 hole in the tube. Then deburr the hole.

3/32 is more than enough oil to lube the roller.

I hope more people see this thread and pay close attention. No Chrysler should EVER run less than an .810 wheel lifter and every freaking block should at least be tubed. It ain't that hard.on this.

BTW damn good catch on this. I doubt 1 in 150 guys check this. It is a big deal.

Well thank ya, YR. I try to kinda look at everything. 100 percent agree on the roller size.
My question to you is how can I drill a hole in there once the tube is in and peened? Been racking my brain on that and could only come up with a small carbide ball on a die grinder....

Also I ordered the kit from Mancini (ugh) but don't think a drill bit comes with it. I have a 5/8 aircraft bit that's 12 inches long. I heard rumors that 5/8 is the right size but don't know for sure. Mancini guy said there's no instructions whatsoever with the kit so I'm flying blind. Hope you can get me through it!