From your webshots, the block casting number is 3769716. If you go to
www.inliners.org and click on casting numbers, it says this is a 58-62 235 block. To the left of your dipstick, I think I read CON 4 then H 2 9 That would mean it was cast on Conveyor #4 August 2nd, 1959.
From this link it looks like your head is a 1956 head
Head casting Number Here is a link describing 1959 serial numbers.
1959 Serial numbers From that, it looks like the block was built in Flint (F) on August 3rd which would be the day after it was cast. Unfortunately, I don't see on the serial number information page, what the suffix A means, which is funny, because they use an A in the example on that page.
Then I found this page
Casting numbers It lists your block casting number as a 1960. That might make sense being built in August, it could be very early 1960 production. I have not been able to track down engine serial information for 1960 235s.
Todd
