Thanks Alex, I guess the shiney stuff is all you can get these days for heat protection. I did find some 4' x 8' x 3/8" sheets of asbestos behind my shop if you really want to go original. I can give you a great price on them.
Thanks Bob. I used some small diameter stainless wire to make the staples. The mig wire works good also, but was stiffer and more difficult to make sharp 90-degree bends without mashing down the type of material I used.
Thanks Tony. I took the rocker arm assemblies off the truck right after I made that video, and it's been down since. It had major wear in the rocker shafts and was very noisy. Finally got it all sorted out today, so tomorrow the engine covers go on and I can drive it again.
Thanks, David