5.4 cylinder head cutaway pic(spark plug aea)

[stephen4785]

I saw a photo of a Ford head cutaway that showed how the spark plug threads on a stock 5.4 heads were junk. Anyone know where that picture is?

[BP]

The Lisle tool page has some pics.

http://www.lislecorp.com/divisions/products/?product=386

[Big A]

[91CoupeMike]

Old!

[stephen4785]

Seems like I remember seeing a cutaway of a cylinder head and the spark plug threads only had 3-4 threads cut into the head. I must be thinking about a different engine.

[91CoupeMike]

2v vs 3v?

[BP]

The lightning guys used to have a bunch of info on this.

[Skidonenko]

http://forums.corral.net/forums/8706372-post9.html

Good nuff?

[lowthreeohz]

Seems like I remember seeing a cutaway of a cylinder head and the spark plug threads only had 3-4 threads cut into the head. I must be thinking about a different engine.

The early 5.4 was that way, they revised it on the 04+ AFAIK

[Captain Crawfish]

terrible design no doubt