After watching video again I see what you mean, but that center was an issue either way, I contacted a few builders who saw the same thing, I think it was MER Mark or Eddie young that said there are 2 different retainers.

another guy same issue

tim,on the rollmaster the black part of the torrington bearing faces away from the cam gear,i could not really tell how you had it in your video.also,like i told you during your builds,i have seen a few aftermarket retainer plates that needed a little clearancing.i have learned through the years not to assume any parts are machined correctly and everything needs to be checked.

well here we go,i just got a rollmaster for a build i am doing,also got an order of new cam plates,guess what,without opening the hole in the retainer plate their will be contact with the bearing.these are gm retainer plates SSSOOOOO,anything can happen.

Yes, that's why I posted that, so people knew to check, we caught it obviously and I learned a lot on them builds, wish I kept them engines after I sold Mistress lol 4 seasons now no issues, too bad last one was in a scarab not my boat!

Yes, black part faced away, thanks for all your help back in the day... !!