Lifter tube peening tool

egg shaped is exactly what I had to deal with. Bought a short block a guy didn’t use. It was all put together and machined at MRL performance. Thankfully that guy is out of business .
Among other things, had to pay to have the lifter bores bushed to fix it. Bearing clearances wrong... on and on the issues. Glad the guy I bought it from didn’t use , for his sake
Thanks for everyone's advice.
Are you guy's drilling and tapping the front and back to 1/2" npt?