shimming hydraulic roller lifters solid

I have seen this done successfully, the guts out of Chevrolet lifters fit perfectly into the bodies of LA/Magnum factory lifters. It may have been a combination of parts from both lifters, I honestly don't recall the exact process. I still have the sample set out in my garage. The Gentlemen that showed me this ran them in his Dart, and believe me, with him at the wheel they certainly get pressure tested! Lol.

To my knowledge he is still running this way after several years of hard service.