It sure as hell got me. First one I ever had go bad in over forty years of doing it. But I guess I redeemed myself a little on this Ford 400 since I broke two sets of lifters in on it. LOL But you're right. It's a huge problem.
yeah the shop I had do my Cummins head has been in business for nearly 60 years, he’s stopped doing flat tappet installs in anything due to all the warranty issues.