The Jalopy Journal
You could always pick up a few books on upholstery, scrounge for scraps at your local crafts store, grab a used sewing machine, and teach yourself.
A picture would help, but I'd guess a valve relief in the bore (odd for a factory engine). Any signs its been rebuilt before?
The first time I pulled the OD section apart on a 46RE (A518/TF8) I didn't have the "proper" tool, so I used the hydraulic press and a scrap...
"wada" sounds like Nevr-Dull (wool soaked in a polish). It will work, but probably take a few months. Your best bet is to hit all the heavy...
Is it possible to reinstall the other bolts with anti-seize, then fire up the engine, warm it up, and break the stubborn bolt loose?
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The Jalopy Journal