I run bronze bushings on my blocks, which have almost zero clearance. When they feel sticky, I clean them with a .243 rifle brush. The rods also benefit from an occasional wipe-down with alcohol or some such. How did you do this and sounds intereting?
This is a rather difficult procedure and I wouldn’t recommend it unless you have the skills and access to some machine-shop equipment. Cliff Curry, who haunts this forum, has a much simpler solution, I think, with some sleeves which are inserted at the ends of the bores. If he doesn’t chime in here, try to send him a personal message.
Hey guys, Ill make a new post over in MODS regarding the nylon bushing specs and install. Just got my first micrometer as a gift for Christmas(thx Gib!) so will be a good chance to check it out!