What AMK offers is on page 198 here:

http://www.amkproducts.com/Catalog_PDF/196-201.pdf

Says C-8204 crankshaft damper for 383/440 and C-8059 crankshaft damper for SB & 426 Hemi, includes 1 hex bolt and 1 flat washer, 1964-1974, $8 each, with no description of size nor head markings.

So now we know 383 and 440 are the same and SB and 426 are the same, and, as posted, the C-8204 has a triangle on the head and not an LE.

As mentioned above, the bolt might have the correct head marking only for certain models, years, or plants and not others. If you just want the right size, thread, and material spec, these bolts should work.

Minimum order is $30.