My BJ8 rocker arms appear to have some lateral play. It's not much, and a knowledgable mechanic says that the play is not worrisome. Before disassembly, the oil pressure was low, but not dangerous. Since then, w'eve added new lower end bearings,bored out the cylinders, new pistons, new rings, new cam and lifters. I'd like a second opinion on leaving the rockers and rocker shaft alone. Ideas?