Used the same on my old 440 with super comps, never leakedOn a lot of heads yes. I use permatex #2 on the threads.
Thats one thing about Permatex #2, you can apply it to the threads and insert it whether it's wet or not. Preferably dry would be better. Blow it out with a air hose. Spray some parts cleaner in each hole to really dry.thanks all,should of thought of that when it was dry.
Thats one thing about Permatex #2, you can apply it to the threads and insert it whether it's wet or not. Preferably dry would be better. Blow it out with a air hose. Spray some parts cleaner in each hole to really dry.
Good luck