Search results

Search the forum Search Articles
  1. 3

    Head bolts holes in my iron block are rusted, need advice on taps and techniques

    I'm working on my 1977 Mercedes 6.9. This thing has an iron block, and I took the heads off a couple of years ago and had to let it sit all this time. I started working on it again recently and I noticed that the head bolts holes had gotten kind of rusty. The head bolt holes are M12 x 1.5, and...
Top Bottom