Here is a little of the info I have gathered on the 262 Six over the years.
Made from 1961 to 1964 - (also Industrial use to 1965) Bore 3.718 x Stroke 4.03.
A Truck only motor that was optional for the 1961 to 64 F-600, C-550, C-600 (the tilt cab trucks) and B-600 trucks Door ID tag code B. In 1964 it was offered in the F-100, F-250, and F-350) light trucks Door ID tag code B: Used in1964 & 1965 DIVCO trucks as the "G" series motor in Models 10-Sr, 40Sr, 40-D, 50-Sr, 50-E, 50-F, 70-Sr, 70-C, 70-D, 100-Sr, 200-Sr, 200-C, 206-C, 206-D. There are other possible industrial uses and some claim they were used in the F-500, N-500 & 600 trucks, & B-500 Buses, but I cant verify those as original applications.
According to
“1961 Ford service Forum No 7 "Servicing the 262 Ford Truck Engine" has this general info and some pictures but not much in part numbers. Externally the 262 will have Dual Primary Belts from the Crankshaft to the Water pump & Generator, has a gear driven cam instead of the chain cam drive of the 215 or 223 light truck engines. The crankshaft gear is lubricated through a flat on the No. 1 camshaft bearing. The use of a Carter Fuel Pump that is mounted on the timing cover and driven by an eccentric on the timing gear (the blocks have a cast side fuel pump mounting boss, but it was blocked off). A water heated Spacer at the Base of the Carburetor was used to Prevent Icing. Had a Forged, rather than a Cast, Crankshaft. Equipped with a Positive Crankcase Ventilation system and a one-quart oil bath air cleaner are standard equipment on the 262. These and other features of the new 262 engine are described in the appropriate sections of this booklet."
Also in 1964 the fuel pump location moved to the side of block, like a 223 and was driven by an eccentric off the cam. The distributor is mounted on the right side of the block towards the front. There are 8 bolts holding down the valve cover, and came standard with a full flow oil filtration system. I have not been able to find out block numbers for the 262 visually they will look similar to the 223 block. I have found some of the other part numbers. Probably the best external identification on a 262 block are the added ribs on the inside of the block and there are extra reinforcing ribs that run for and aft almost the entire length of the block to give added strength to the upper Crankcase area there are some massive ribs above pan rail too. The 223 blocks don’t have the added ribs so this makes a 262 block 20 pounds heavier than a 223.