The 64 Block may be stronger than the 65-66 blocks. They were still a couple of years away from being retired for the 400 blocks. And as was mentioned all of the later driveline parts, flywheel, bell-housing, starter, heads bolt up nicely.
But any of those 3 years: 64, 65, 66 are fine for a street cruiser.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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