I'm in the same predicament. Post up what you find, if you please. I looked into this a year ago but didn't look into trying to find one off another application.
Pretty sure it's a Remflex - https://forum.ih8mud.com/60-series-wagons/388380-egr-down-pipe-gasket-any-solutions.html
...and a review - https://forum.ih8mud.com/40-55-series-tech/269057-remflex-gasket-review.html
I went OEM on this considering the old oem gasket lasted 30 years.
Weird to see a tape completely in mm and I'm from the Queen's second home. My Dad have a 74 FJ40 that he put a 327 in and used to race in the foothills of Alberta. He ran his air intake into the glove box to keep water out during those deep water crossings.
Well, it has been awhile but i thought I would post up the results. I used NGK Y-178T (3030) glow plugs, which I bought from a local parts store at a reasonable price. The glow controller works flawlessly and lights up the coil to a bright orange in approximately 10 seconds, which I believe is...