Motorcraft Plug Help

[GK]

Hi All,

I'm wondering if someone can help me with some plug questions.

I got some plugs from Bayford Parts for my AU1.

My Ford Service book says that the plugs I need are Motorcraft AGS42CC, but the items I got today are AGS33C.

Looking at the pics of them, you can see that the tip will go deeper into the combustion chamber. Is there any problem with this?




Also, is there a difference in heat range?

If they were NGK or such I’d have an idea of how to interpret the numbers for spark gap / heat range etc, etc, but Motorcraft plugs are new to me.

Here's the linky to the the ad on Bayford Parts.

http://cgi.ebay.com.au/ws/eBayISAPI....MEWN:IT&ih=016

Cheers,

GK