I would think that the flywheel from a later chevy truck with a 454 truck motor should work. After they quit the 427 in about 79 or 80 they went to the 454 in 2 tons. A flywheel from a 3/4 ton with small block 400 might also be big enough to fit a 13" clutch. I don't know when they went to the double disc clutch but the flywheel should be the same. They should still make the starter or at least have remanned ones.
'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.
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