Hi this John from switzer diesel in california. we have a 66 ford F-100 and we are wondering what cubic inch displacement the engine is. According to wikepedia it could be either a 200, 223, 240, 250, or maybe a 300 but i don't think so.

 

I might be able to help. What is your vin number?

 

Best guess 240 or 300

 

I would most likely be a 240, maybe a 300. The 240/300 came out in '65, replacing the earlier 223/262. The 240/300 is larger than the 200/250 series engines & has a removable intake. The only way to really tell the difference between the 240 & the 300 is the stroke; 240 has aproximately a 3" stroke & the 300 has a 4" stroke. Check out this site: http://www.geocities.com/edwins63/I6ID.html for some more information & pictures. Hope this helps.
Edwin

 

The 240 and 300 were first offered in the F100 in '65. My 1965/66 F100 / F250 Facts and Features Manual shows five inline six truck engines:

170
200
240
300
300HD

 

The 170/200 were mainly used in rancheros, though they could be found in the E-series vans/trucks (at least the earlier ones) & some delivery trucks. The only time I've seen one in an F-series truck is when it was swapped into the vehicle.
The 240 was the base engine in the F100/250 & even the 350, though the 300 was a common option.
The 300HD is a rather rare beast & was mostly found in the larger trucks (larger than the F350). I don't know all of the differences between it & the regular 300, other than it had a forged crank. A few ended up in the smaller trucks, but not many.
Up untill the later sixties, the most common engine seemed to be the 240, so its very likely that its a 240. Having said all of this though, post the VIN & there are people here who can decode it for you. In addition, you also might want to check the casting number on the engine (with a truck this old, its very possible the engine is not original). Look on the center-right side (passenger side) of the block near the oil pan line & you'll see a series of cast-on numbers & letters about 1/2" tall. The casting number won't tell you what the engine is, but it could give you an idea. If you're still unsure, measure the stroke.
Edwin

 

Well I guess you're right 63redtudor. I looked in teh Standard Catalog of Light Duty Ford Trucks 1905 - 2002 and it does not indicate a 170 or 200 for the F100 in 65. the Facts and Features Manual must be off.

 

According to Wikipedia? Yeah, right...the usual mis-information.

The only 6 cylinder engines used 1965/72 in F Series trucks are the 240 & 300.

The 240 was also used in 1973/74, the 300 was used from 1973 into the late 1990's.

The 170 & 200 are primarily car engines and were used in Mustangs, Falcons, Fairlanes, Bronco's (1966 thru 1974)...and 1961/67 Econolines (which also used 240's on some).

F Series Trucks: The 4th digit in the VIN is the engine code (thru 1980).

1965: B = 300 1V / J = 240 1V

1966/72: A = 240 1V / B = 300 1V

Sources: 1964/72 Ford Truck Parts Catalog / 1965/72 Ford Passenger Car Parts Catalog.

> > 223 I-6's used 1953/64 in F Series trucks, 1953/64 in full sized Fords = 1953/61 Customs, Fairlanes & Galaxies; 1962/64 Customs & Galaxies).

Take what you read in Wikipedia with a LARGE grain of salt..on any subject.

 

Ya I know Wikepedia is probably not the best to base ones knowledge.

Any way I have got the "vin" Warranty number which is F10BR764520.

I do not know how accurate LMC truck is but according to my vin and the year stamped on the license which is 1963 the engine code is B. Therefore the engine is a 262? But the only strange thing is that the net HP stamped on the door jam is 150HP and according to LMC 150HP was a rating for the 240. Now the LMC rating for a 262 is around 135HP's. I also am not sure on the year only for the 63 stamped in the license plate.

Any way thanks for the replys and I hope I can find out which engine it is.

 

NumberDummy, I deffinately have to agree with you on Wikipedia. Its a very usefull tool..., but its also dependet on people's submissions. They aren't always right.
Edwin