spark plug gap for Workhorse (GM) 8.1L ?

[23hotrodr]

Anyone know what the spark plug gap is correct for 2007 Workhorse 8.1L ? Thanks-- Mick

[23hotrodr]

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

[MARKW8]

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

[rgatijnet1]

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

[MountainAir05]

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

[K_Charles]

What kind of plug, different get for different plugs.

[rgatijnet1]

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