C2: decoding the engine stamping pad

[Barbara S.]

Can someone decode the first half of the alpha-numeric code on the engine stamping pad for a '65 Roadster, please?

FO408HT-5115027

Many thanks and happy holidays!
Tony

[Wayne M.]

L79 (350hp) assembled Flint Mich. on Arpil ...

... 8th 1965. No air conditioning or transistor ignition.

[Barbara S.]

A follow up question: the trim tag

Hi Wayne. I'm a C1 guy; not a C2 guy.

If the build date is 4-8-65, could the trim tag be dated I12 ( I assume April 12)?

Thanks again.
Tony

[Wayne M.]

Certainly, Birthday site says car comleted ...

... April 14th, so I12 (April 12) on a St Louis body trim tag is in line with the engine produced April 8th in Flint, Mich.