Tubing the gallery with a twist

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.