Brothers, iv got a 1977 F750 (vin#F75FVO85xxx) trans code 7. my question is will a 6v92ta bolt into this truck with that trans? was that truck avalable with that engine from ford ? from what i can gather the motor has a SAE 0 fly wheel/clutch & bell patern. has a 389 gas in it now. any help ? thanks

 

ford never used that engine to my knowledge in there f- series trucks and that is one big engine for that truck and the transmission that is in there now would never hold up to the power of the 6v92 !

if you did use that engine it would be a slow mover as the gears in the rear will be geared for a higher reving gas burner ( geared to low )

 

To my knowledge, Ford did not offer a diesel in the F-500/600/700/750 until 1980-81, and more than likely your gas engine is a 391 of the FT family of engines, don't recall ever seeing a Ford 389 though.

A 6v92 Detroit is way too big to even think of fitting in that truck. A 6v53 would be more of your speed, and probably would have a higher chance of bolting up to your transmission. You tube has several videos of F-250 and F-350's from the 70's that have had 6v53's put in successfully. F-series trucks that utilized pickup cabs never had diesels so far as I know, the industrial cab FT-series and L-series did however, but they had Cat 3208's, some variation of a Cummins, or a 6v53 Detroit.

 

Can't remember about the F series but I had 2 '64 N700s with Dagenham diesels they were also available with Detroits think the were 4-53s
Almost forgot about the Dorset engines were also available

 

F75 = F750.

F = 391 4V Xtra Duty FT engine (a 389 is a detuned for emissions 391, otherwise it's the same engine).

V = Kentucky Truck Assembly Plant.

O85XXX = 1977.

7 = Spicer model CM-5052-A 5 Speed Direct.

Diesel engines were first offered for 1962 F600's (Dagenham or Dorset, 1968 for I-6 Cats), but no F500 of any year ever came with one.

 

From 1968-79 Ford offered 3208 Cat V8's in F-600's and F-700's. They were labeled F-6000 and F-7000. They weren't common back then, and they are a rare site today.
The 3208 was actually designed for Ford to replace the 534 gas engine in 1968. They were painted blue, and labeled V-175 (for the HP rating) until 1975. From 1976-79 they were still blue, but the model changed to V-636 (for the displacement). The HP and torque specs gradually increased a few times, but it was still the original 3208.
In the early 80's, they were painted yellow, but still had the FORD V-636 labels on the dome covers. Eventually, they just got CAT 3208 logos. I would imagine that the contract with Ford was up at that point, because 3208's were showing up in all makes of trucks and equipment by then.
Chuck

 

The early ford I saw with cats had 1145 & 1160 series the 3208 came a bit later

 

i would love to see how your project!!, im doing the same thing bit using a 6v71 in a pickup.

 

Ray,
The question was about Diesel availability in F-series specifically, and that's what I answered about. Only the F-600 & 700 models could be had with a diesel, and only the 3208 was available. The engines you mention were available in other, non F-series models, as you stated.
Chuck

 

chuck, didnt the cat3208 use the SAE# 2 bellhousing? if it did then what ever trans the OP has it should blot right up right?

 

Wont bolt in but it sure would be cool.

Ive got a 18000lb '66 f850 with a 6v71 NA that goes pretty good. That 92 would be an absolute monster!

I put a different rear axle in mine with 3.55 gears for the highway. Also has a 10 speed and 4 speed brownie with OD.

Works great. Wouldn't mind the TA though..

 

The bell housing used in an F-series 3208 application is not SAE pattern. They all came with 5 speeds. Any of the big, SAE transmissions would be way to long for an F-series. The shifter would be under the seat.
Chuck

 

Cat 1140 (V-150, 150 hp @ 3,200 rpm):
*F-6000 (January 1968 to 1974)

Cat 1145 (V-175, 175 hp @ 3,200 rpm):
*F-6000, 7000 (January 1968 to 1974)

Cat 1150 (V-200, 200 hp @ 3,000 rpm):
*F-7000 (January 1968 to 1974)

Cat 1160 (V-225, 225 hp @ 2,800 rpm):
*F/T-8000 (January 1968 to 1969)

Cat 3208 (also called "Ford V-636" from 1975-80) (175 or 210 hp @ 2,800 rpm NA; 225 or 250 hp @ 2,600 rpm turbocharged):
*F-7000 (1975 to 1979, 1983 to 1990)
*F/FT-8000 (1983 to 1990)

 

They made SAE bell housings that you could install a small 4 spd tran behind

 

The shifter is in about the same area.. Plus fuller transmissions are much easier to use than those 5 speeds ford used..