Builder handled the motor once we pulled it. Problem with the cam, ate a couple of lifters. I think it was a bad grind, but can't say I never saw it before or after. Grasshopper figured since it needed a new cam he would put in a roller cam. Zinc in the motor oil today is partly to blame, (the lack of it) Also when starting a motor with a flat tappet for the first time it should be run around 2000 2500 rpm for the first 30 minutes with Break-In Oil Additive. but with a roller cam no such problems That's why we were pretty blown away about this situation, because we added zinc and ran a breakin of 30 minutes @ 2200rpm. Oil pressure looked ggod the whole time, it wasn't till the next day or so and the oil pressure had dropped. Like you said, with the roller it is a done deal. Thanks for the post! First time I looked in on this build. No surprise on the quality. You guys are kicking as on this one. The cam issue seems to be becoming an all to common problem these days. In the last few years I've had at least 3 different guys do motor rebuilds and wond up with the cam being eaten up. They all did proper break in with the "good" break in oil that has the added zinc also. I won't do anything besides a roller from here out, todays cams are straight garbage and need all the help you can give them to hold up. I saw this same isssue on a Ford motor about 6 months ago, guess this is becoming an issue now. Never had issues like this "back in the day". Roller cam seems to be doing well, course havn't heard much out of Grasshopper lately.