Guys, I see new spec 4.1 3v has two different heat treatments,One with delta stamp and The other one doesn't have it. Are there two different HT lines for 4.1 3v? What's the difference between them?
My English is bad, so I have to ask questions at the forum, and then get a clear answer to help me make the choice.
My English is bad, so I have to ask questions at the forum, and then get a clear answer to help me make the choice.