They are. The problem is simple. There is no forging die in China that has enough material to make the Y-Block snout.
I've looked into having cranks made and the answer is always the same. Went through a couple of connections, Same answer.
So, there would have to be a new die, modify an existing die or weld material on the forging to make the snout long enough.
I have cast 4 samples of the crankshaft I was trying to make here but finding someone to machine it is another story. Best price so far $1100.00
for machining only.
For now, offset grind or wait. Or go to a billet crankshaft.
http://ford-y-block.com 20 miles east of San Diego, 20 miles north of Mexico
