496 MAG Cams

[Beer-30]

FYI
Teague sells Crane Gold rockers that have been machined for clearance under the stock valve cover.
That's nice of them. Cool.

[Sweet Addiction]

So these would be the rocker arms we need
Arizona Speed and Marine rocker arms (http://www.azspeed-marine.com/496rockerarms.html)
and these would be the spacers we need
Arizona Speed and Marine valve cover spacers (http://www.azspeed-marine.com/496vacosp.html)
So with this setup you can get the rockers on there?

[Beer-30]

I wouldn't use those rocker arms, personally. They are fine, I am sure, but if I were to run Crane rockers, I would spend the extra money for the Golds.
The rockers I would run would be the Comp Cams stainless. They are lighter at the tip than aluminum rockers and stronger. Plus, INFOMANIAC here can get them dirt cheap. They have better clearance also. They are about the same price as those entry-level Cranes that ASM shows.
Yes, those are the spacers. Still don't know of anyone making new valve covers for 8.1s.

[Nordicflame]

Larry Peto, of Larry's Engine and Marine, has a set of Lunati rockers that will fit under the stock covers for a reasonable price as well.
Dave