Lash tolerances

[Heo]

Looks like a Edelbrock gasket

[cjshaker]

You don't need to tap or chase the threads in the rockers. The factory adjusters were designed to induce the interference. The Cranes will work fine out of the box. Some guys say you have to spot-face the rockers for the jam nuts, I didn't and they worked perfectly fine.

[scott foxwell]

There are oversize adjusters available for the FE.

[Drew Pojedinec]

The last set of adjustables I had already had half of them oversized and were still loose.  Oversized adjusters cost more than the Crane adjusters.

Spotface?  No I did not.  I spent several hours cleaning up the rockers tho, removing casting flash, etc.  I did hit the area where the adjuster will go with a flap wheel so the adjuster would sit a lil better.

You do not *need* to tap the rocker arms, but I would take great care threading the Crane rockers in as I caught a burr once and cracked the adjuster where the allen wrench goes into it.

Yes Heo, Edelbrock gaskets, I was using double gaskets, so glued one set to the head and one to the valve cover.  Grease in between, comes off easily.  (poor man's valve cover spacers)

[scott foxwell]

Drew, what stands are those?
The oversize adjusters I was referring to are from Smith Brothers. I wouldn't put the Cranes in the same class. I'm looking to set up a nice HD factory adjustable valve train like that.

[Drew Pojedinec]

I gotcha Scott, I thought you were talking about factory .003 oversize adjusters.

Precision oil pumps endstands, spacers, stands.
Studs, and crane adjusters.
I think the whole setup cost me about $450 (including core adjustable cores and new sealed power shafts).

I'll send you a facebook link from a post I did there in a minute, it gives a breakdown on all the parts, etc.

[Ranch]

These adjusters from DSC Motorsport are like the OEM style but .003 bigger. That should compensate for the wear in your rocker.

http://www.dscmotorsport.com/Cylinder/index.htm

http://www.dscmotorsport.com/asp/Products/popup_PartDetails.asp?PartID=418