I’ll probably have my machinist handle that mod. I think he has the ream or bit.
We discussed it on my current engine, but when he saw the lifter I was going to run, he agreed it probably wasn’t necessary.
I'd have a LONG talk with the dude. Any lifter that isn't hydraulic needs that modification. I don't care how tight the lifter bores are, they are a HUGE leak.
Also, if the guy doesn't understand enough to tube the block and NOT use a crossover he needs to rethink the oiling system on a Chrysler.
The crossover tube is worthless. The tube in the oil gallery is a BIG deal.