I had bronze guides, not guide-inserts, installed with PC umbrella seals last head rebuild. The results have been good. As I said up-thread, at 40,000 miles no stem wear.
1951 3800 1-ton "Earning its keep from the get-go" In the DITY Gallery 1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.
