If you are building an engine today (~2023), Professionals are not building Hydraulic FLat Tappet camshaft engines? Don't try?

Yeah like said untill it happens to me I'll keep plugging along. I will check lifters for the convex bottom. I just did a flat tappet street engine 5 years ago no issues so...yeah I don't know what's going on. I do agree though, if I was starting from scratch now as in I was just getting started in the car hobby etc. I'd build a magnum roller tappet engine I do agree with that logic. I'd go 5.9/360, but that's just my opinion. There are alot of small details to be checked when going together and thigs have to be real clean like said. If you miss one little thing, and a flat tappet lifter hangs up in the bore? that would do it also.

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