It took a bit of research, as well as creating a couple tools, but it worked!
INGREDIENTS:
1. Welded 10-inch ratchet extension to tail end of "Sav-A-Thread" cutting tip
2. Modified 5-feet of clear plastic tubing to operate with a Shop Vacuum
PREPARATION:
1. Cut new threads into (rear; firewall) head using elongated cutting tool
2. Vacuumed out combustion chamber for 10 minutes (twisting plastic hose around continually until no additional "aluminum confetti" was seen).
3. Put anti-seize compound on new Double-Platinum spark plug (gapped appropriately, of course)
4. Put "Sav-A-Thread" steel thread insert onto spark plug
5. Put a tiny amount of JB Weld onto top threads of steel insert
6. Installed spark plug+insert into cylinder head
7. Torque to specified Inch-Pound setting
8. Let sit 24 hours (for JB Weld to completely cure)
9. Serves 5 seatbelted occupants.
10. Enjoy!
COST:
$30 = Sav-a-Thread Kit (Thread Cutter + inserts)
$10 = 10-inch extension
$5 = JB Weld
$1 = Plastic Hose for Vacuuming
$0 = Welding at Local Exhaust Shop (thanks guys!)
Priceless = Fixing stripped threads on the firewall-side cylinder head without removing the head
Pictures available upon request. Thanks for the encouragement and ideas!
