Quote:
Originally Posted by '68OrangeSunshine
If not corrupted by a later rebuilder, there should be a stamped code on the machined pad just aft of the distributor hole.
For example two codes on 292s I have are:
F0626UH = Flint, MI, June 26th, 292 Manual Transmission. [1967 block]
F0627XAE= Flint, MI, June 27th, [XAE is a mystery] But it's the known original engine, a 292 L6 [1968] in a '68 C/10 Stepside w/SM465.
The upper listed engine I pulled out of a C/20 longbed stepside ex-Forest Service truck in a junkyard in Tucson in 1977. Coincidence they were built a year and a day apart.
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The engine stamp is F0113TCL which would indicate a Jan 13 assembly date which is consistent with the Jan casting date.