There are a few threads with owners asking how to identify a 262 inline 6 as opposed to the more common 223. One thing I've read is that there is an extra cast rib on the drivers side of the block of a 262.

So here are a couple of images from my 1961-1963 Ford Truck 100-800 Series shop manual, showing the rib cast on the 262, lacking on the 223.

 

Another identifier is the 223 has the oil fill at the front of the valve cover and the 262 has it midway near the air cleaner. 61 Manual, Group 1 Figure 13 Shows the 262 in a typical install. Note the large truck brake master in the upper left corner.

Garbz

 

Also the 223 has a timeing chain, where the 262 has timeing gears.

 

Notice the 262 also has two belts to drive all pulleys. I know that's not a true Identifier but Ford shows it in all of their brochures, and my 63 also has the same setup.

 

'62 F100 262. My fuel pump is mounted to the timing cover. Water pump uses a larger diameter hose than the 223 pump and the hose has to wrap around the fuel pump to get to the radiator.

Tom.

 

Now we are getting into the difference between a HD 262 vs. regular 262 ('64 pickups only)

 

My 1963 262 engine block casting # is C3AE-6015 AC. I was told the AC denoted a 262. I haven't checked if the fuel pump runs off the cam bump.

 

My 63, 262 Block Casting is C3AE-6015 AC. I was told the A C denoted a 262. My block has the extra rib on the Driver's Side with inspection shield on passenger side. I dislike engine codes!, because of the rabbit hole that they take you.

 

The AC is just a revision indicator.

See post 2:

https://www.ford-trucks.com/forums/1...-6l-223-a.html

More ID info with pics:

https://www.ford-trucks.com/forums/1...-for-sure.html

Have you measured the stroke? Checked the illustrations above?

The 262 was a truck only engine, right? It should probably have a "C3TE-6015" cast into it if it's a 262. But the stroke tells the tale. 223 = 3.60" // 262 = 4.03"

 

I went out to look at my engine, and forgot that I have a 1964-1963 F100 shop manual. Of course being a shop manual it explains to mechanics when these these truck's come in for service, what to look for. It covers the 223,262, and 290Y block.
The 223 Most noticeably is the Valve cover has a slight vertical drop of about 4 inches in the front. Ford list the list the valve order as E,I,I,E,E,E,I,E,I,E this has to be a misprint of course. 5 intake valves. The oil under the full-jet metered pressure if fed through a drilled passage in the cylinder block at the #3 camshaft bearing which indexes with a hole in the cylinder head An inlet tube directs the oil into the valve block rocker #4 valve rocker arm shaft support. An oil outlet tube exhausts excess oil from the rocker shaft to lubricate the gear outlet at #1 rocker arm support. The oil circulates trough the sump, then pump, heads timing chain, filter. The timing chain chain is greatly more recessed in that area, and I assume that maybe its a tin type of cover. To me this is the most noticeable difference by far.
The 226, Valve cover is more symmetrical squared with rounded corners with breather in the center PCV valve in back rear. PCV runs to the intake riser. regulate exhaust gas. Fuel pump runs on 3 lobe camshaft. Distributor, looks bigger, runs off its own timing shaft connect with timing gears. The timing cover is cast metal, no alignment pegs, protruding approximately 1.25"-1.50" out, and has to be measured and calibrated so gears run mesh properly. The timing gears are lubricated through a flat on the camshaft #1.OIl under full-jet metered pressure is fed through the T-drilled camshaft which meter the flow to a drilled passage in the cylinder block. PCV, Ventilating air enter the engine through the oil filler cap of the front center of the valve cover of the valve rocker arm cover, this i s why mentioned vale covers. the filler contains a filtering element which element with in coming air From the oil fill cap, the flows the front of valve rocker arms shaft chamber directly back and around to the intake manifold. the Riser looks bigger on the 262. All this, to say this. The third rib from what I can tell, through BS research today, Is the noticeable difference is the timing cover and third rib, looks just like a 300 4.9L. In 63-64 the obvious 3rd rib is only on one displacement, and that's a 262. Looks just like a 300. Im not going to mention the 240 because I've, never seen one. I did this fast and sure there are tons of typo's and someone who knows a million more things that I do, will slap me down. I'm just going by my 4 trucks, and service Ford service manuals 63-64. The engine options were for a F100 was 223,262, and 292 Y block.
Thanks