So with my engine destroying a cam and half of the top end of my motor, my postmortem examination has revealed the issue to be the cam tower bolts loosening up allowing oil to flow, not into the cam tower, but out of the rubber puck under the cam tower causing oil starvation. While the proper application of loctite and the correct torque sequence (which I am
sure that I followed previously) should correct the problem as (when) I get the engine back together, it has gotten me to thinking about the modification below to make sure that everything stays where it is supposed to, especially since I will be going wit a slightly larger profile cam. Probably unnecessary with the WebCam 63a, but still, I'm going to be paranoid now and checking oil flow every couple of hundred miles.
I know that MCRider has one of these and MRieck probably has some info, too, but tell me more about these and what it involved to make this modification, please.
From this thread:
http://forums.sohc4.net/index.php?topic=44242.0To JLeather and Rob Voxonda:
here's my reinforced rocker box:
It was built by Les Barker of Little Engine Service in Vancouver WA, in 2000. I said this project got stalled for quite a while. 
I look to use it as insurance, my cam will be mild. I did experience having a cam twist in half which is the symptom of cam tower flex. It was a very big bump cam and I was touring with it, pretty stupid.
He said he obtained some templates from RC Engineering or something similar. he charged me $185 which I thought was a steal at the time and worth $300+ now I think. I don't know if he's still in business. He did a lot more work with smaller motors which is where i met him (Vintage Jap MC Club)
To Rob: Here's the underside of it:
Very simple and clean really, just the underside of the threaded lugs that were welded in. If one were to thread the hold down bolts to their furtherst extension, they stick down inside the cover about 1/4 to 3/8in. I assume they make contact with the tops of the cam towers before that.
