Other members can probably tell you what the best repair would be. Years ago I had a shop rebuild a set of small block heads for me, they installed bronze guides that were supposed to be "The cat's meow". I don't know the specs on the head job but the engine was just a daily driver, it ate oil badly. I had another set of heads rebuilt by a different shop and they used steel guides and apparently knew the ropes on the correct tolerances, it took care of the oil problem. In all of the Chevy cast iron V8 heads, the factory guides are machined directly into the casting with no additional type of insert and those will normally run 100,000 miles or more with little trouble. A machine shop can bore the original guide and press in a thin wall sleeve and then hone the sleeve to the correct diameter. I assume that your head can be machined and new guides can be pressed in, I have very little experience with the inline engines.
Last edited by 78buckshot; 11/23/2024 11:12 AM.
