F20 head casting code

[artc]

I've been working on several heads lately mostly F series tractors (regular, F20, and 1020) this is the first one i recall to have a casting date code on the head.

it's an F20 head, painted red and looking very original, and has a casting code of 5 / 26 / K. 1941 or 1942 depending on if O was used. But 1939 was the last of the F20's, and that was probably just leftover production castings.

i don't have the rest of the tractor, this head and manifold was in the barn out at Zagray. We have a couple of guys fixing everything in sight that has a hand crank, so i've been stripping the heads and sending them off to my machine shop bud for surfacing and inserts / knurlizing the guides, etc.

i imagine this is a replacement head, made during the war years.

[Dusti Snider]

I'd agree. I have two F-12 heads, neither of which have a casting code, nor do either of the Regulars.

The F-12 does have an actual casting date on the Power Lift from July of '36 I think.