spark plug gap for Workhorse (GM) 8.1L ?

Thanks to all who answered! Very good info from you all. Thanks-- Mick

If the plugs you get are iridium, you never want to change the gap. It can damage the iridium coating.
Mark

Here is a link to what one of the experts has to say about the gap and different types of spark plugs. Oemy's

They come pre gap at 60 and should not be change.

What kind of plug, different get for different plugs.

I think the factory says .060 but many people also recommend .045 for better performance.