F20 head casting code

Farmall F-xx Series Tractors, 1931-1939
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Tractors Owned: Restored: 1950 Cub, 1950 Cub Demo, 1948 super AI, 1935 Silver King, 1946 Oliver 60 RC, John Deere M, 1950 C demo.

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F20 head casting code

Postby artc » Tue Jun 17, 2014 2:54 pm

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.
'If they're tappin', they're not burnin'

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Dusti Snider
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1949 Farmall Cub - Original "Blue Ribbon Reconditioned"
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1956 Ford 640
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Re: F20 head casting code

Postby Dusti Snider » Tue Jun 24, 2014 9:11 pm

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.

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