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1968 F850 what engine code is 'O' or 'Q'?

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Old Dec 19, 2025 | 09:15 PM
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1968 F850 what engine code is 'O' or 'Q'?

I found a neat 1968 tow truck as a new project and I'm trying to get more information on it. The hood is badged as a super duty 1000, but the VIN seems to say it's an F850.

VIN Plate:
F85QU400294
146 J F854 81A N 14F
27,000 222 3200 13

I can't find the engineer code 'Q' or 'O' anywhere, I also couldn't match the 222HP@3200RPM with any motor that was sold with it (that I've uncovered so far). If I do get it, I'll end up going with a Marti Report.

I guess I'm looking for some advice on where to start looking for info on this thing. Is it possible to buy shop manuals for them? What about the tow gear? That would be cool to learn about.
 
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Old Dec 20, 2025 | 12:21 AM
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Welcome to FTE!

F85 = F850

Q = 477 4V Super Duty gas V8, 222 Certified Net HP @ 3200 RPM

U = Louisville Assembly Plant

400294 = 1963 numerical series, April 1963 production. (What tells you 1968?)

146 = 146 inch wheelbase

J = Red (Monte Carlo Red or Rangoon Red)

F854 = F850, 27,000 lbs GVWR, 22,000 lb capacity rear axle

81A = Cab and chassis vehicle. Conventional closed cab standard.

N = Spicer model 5652 five speed direct transmission

14F
14 = This shows a 44,000 lb axle--not right for this truck. Is it L4? If so:
L4 = Timken model Q246 single speed rear axle, 22,000 lbs capacity, 7.27 ratio
F = 9,000 lbs capacity front axle without H/D front brakes

27000 = 27,000 lbs GVWR. Got that CDL handy?

222 3200 = 222 Certified Net HP @ 3200 RPM

13 = New York District Sales Office
No special order.

Marti won't have a report on this size truck. I think they go to 350s.

Super Duty engines are hard to get parts for.

As to the tow truck equipment, look for a placard or plate with the Manufacturer name and model number. That equipment was added after sale and is not Ford equipment.

For shop manuals etc, search "1963 F850 Master Parts Catalog", and "1963 Ford F850 Shop Manual" and you'll find paper copies on ebay and other sellers.

There are CD versions through:

https://hipoparts.com/1957-63-ford-t...ts-catalog-cd/

I have a PDF of the MPC I might be able to forward you, but the MPC is not a shop manual or repair manual.





 
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Old Dec 20, 2025 | 05:41 AM
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Thanks for the info! The seller listed it as a 68 and the front looked more like the late 60's models than the earlier versions based on the grill/lights, but I'm also just guessing based on some pictures I've found online.

They also said they had a 63 model but that was a smaller trucks. Maybe he got the years mixed up between the two? I'll have to find out

 
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Old Dec 20, 2025 | 06:45 PM
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I bought it! The transferable reg with matching vin says it's a 68 and only a gross weight of 23000.
 

Last edited by asavage; Yesterday at 08:11 PM. Reason: Removed un-referenced quote.
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Old Dec 20, 2025 | 06:50 PM
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Hard to say what's going on there.

The VIN is on the frame. Some examples but it could be hard to find.

https://www.fordification.com/tech/vin_find.htm
 
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Old Dec 20, 2025 | 08:34 PM
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The "Super Duty" badging refers only to the engine in those years. The Super Duty was a class of engine back then, not like current Super Duty badging. 401/477/534 cu. in.

https://www.ford-trucks.com/articles...-duty-history/

https://www.ford-trucks.com/wp-content/uploads/2022/10/Screenshot-2022-10-04-at-18-29-29-AR-96-212010-14041-access-1958_Ford_Extra_Heavy_Duty_trucks_brochure_AR_96_2  12010_14041.pdf.png

I know some Ford trucks in that era kept the older cab after '66, but I thought that was the N-series? And that VIN is . . . pre-'65?
 

Last edited by asavage; Dec 20, 2025 at 08:37 PM.
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Old Yesterday | 05:36 PM
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Been learning a ton about these trucks, and did a good job staying away from the engine so far. I had a goal to try and start it around the end of June so I'm gearing up for that.

Went looking for the Carb model # and came back with:
C3T3-9510-D
LIST-2156-1
623


From what I'm seeing it looks like this is for the 8.8L 534. So more mystery instead of less.

I did confirm the vin matches the registration which shows it as a 68.

I'm going to try and find the engine plate when I pull the carb off in a week or so. I'm going to look for a vin plate on the frame when I get under it in June
 
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Old Yesterday | 08:36 PM
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Generically, "C3" = 1963, though the number can be a replacement for an older carb or be used well beyond its original Engineering number, so it doesn't pin to one year. Look for an aluminum tag attached to the carb, like this:







I see a few sources that tally that LIST-2156 to the 477 & 534; those are both essentially the same engine with different displacement, so that makes sense.

https://carbdoc.com/holley/holley-nu...html#gsc.tab=0



https://carbdoc.com/catalog/ford-ind...html#gsc.tab=0




https://carbdoc.com/catalog/ford-tru...html#gsc.tab=0



[later]
Ah, Bill did the work already back in 2017:
https://www.ford-trucks.com/forums/1...ification.html

See the last post, by Bill. Definitely 1963 (only).
 
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