Follow up
Hi Owen
Sorry for the delay getting back to you. Attached are two photos that I think will help.
The first shows the oil filler neck on my Pattern 12 C60L engine is now sitting on engine test stand as it has been replaced with a 235, I've kept the engine complete with oil in the cylinders.
Overall length of tube (no cap) 8 1/2"
Filler end standard CMP gas cap 2 5/8 OD
Engine end 1 3/4 OD
The next photo shows a bunch of Ford gas filler necks for the 48-52 F series trucks with the gas tank behind the drivers seat in the cab.
Overall length of tube 15"
Filler end standard CMP gas cap 2 5/8 OD
Engine end 2 1/4 OD
Hope this helps
Cheers Phil
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