SBM Roller Lifter Choice

I think you may be looking for a unicorn. I’m in exactly the position you are in, accept I would be looking to upgrade to a roller the easiest/cheapest way possible. Which would be change cam/lifters/springs DONE! The unicorn comes in because some say “this” lifter works with no oiling mods, it probably did for them doesn’t mean it will for you. They went in with no grinding, they probably did for them, but it doesn’t mean they will for you. I have been thinking about this for a while and I think you will just have to prepare yourself that it may work out, but the odds are you may need to tube the galley or less probably, grind the valley to clear them. When I do it I will tube the galley as a precaution. The amount of chamfer is so random that until you put all YOUR parts together you won’t really know.