“This kit allowed me to cleanly and effectively replace the stripped out aluminum thread.” Autoblog aims to feature only the best products and services. If you buy something via one of our links, we ...

Spark plugs that haven't been changed for a long time can become one with the cylinder head. Fortunately, it's possible to repair damaged threads instead of scrapping the head. (Photograph by Chris ...

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. When you’re working on engines, machinery, or older equipment, ...