You edited your first post on Oct 15 (today)
In case the recent readers have not gone back to the first post, here is the engine ID info you edited in, up there:
/// Serial # F1011A
Date: J97 (10/09/57?)
Block #:3738307
///
J 9 7 = October 9 1957 - block casting date
738307 = 1958 and later block (most likely available in late 1957)
F 10 11 A = engine serial number when installed in the truck
F = Flint Michigan engine
10 = October
11 = 11th
A = "regular" truck engine - mechanical lifters
