Roller rockers are gold crane, we're not changed as part of the top end rebuild.

I actually just talked to a guy in MA that just blew an engine with the same symptoms and same lifters. Likely a different setup. I sent him videos and his motors sounded identical.

Who makes these, I think you referred to them as knock off morels ??

I never said they were knock off morels. I said these were RL931 which are made by morel. Just rebranded.

RL931 = Morel 4603 = Howard 91162

Morel makes for almost everyone including lunatai, cam motion, PBM, erson, Howard, etc. I put in for warranty with Erson and he said he needed to talk to morel. I'll copy and paste his email later.

Morel makes many lifters. I honestly am not sure how they go about it etc however have read they make some of Howard's also. Thing is there not cheap either.

These were $700 lifters

I see, thanks for the correction, well... maybe there making so many that the quality is suffering, Im running Morels

I read that there are actually just a handful of lifter manufacturers. I can't confirm it but certainly wouldn't surprise me. It sucks for the OP though as I am pretty certain he won't get credit for them and I wouldn't trust them at this point anyway. Another 2k plus with gaskets etc and a lot of labor.

If/when you end up resolving the problem with some red zones or what ever I would be a huge pain in erson's azz. Sounds like this is a known ongoing problem with some of their lifters. they do have some good cam grinds for what it's worth.

Pbm...

A lot of companies are switching. Isky is one of many.

Dang man, all these lifter issues,what would I choose if I was to do a rebuild........I fired the port engine on the hose at the house two weeks a go and it made some noise, shut it off and restarted and it was fine.