Hey everyone my grandfather has a 1979 Ford rollback truck with an big ole gas 475 in it. Well long story short the motor locked up after he forgot to put antifreeze in her. She's a great truck I'm not sure what kinda truck she is but my grandfather says it's an old LN model truck looks like about an old F800 but I don't know much about these bigger trucks I've always worked with the smaller trucks. Anyways if anyone can tell me what type of engine would drop in or what all vehicles these engines came in I'd really appreciate it.

 

If you post the VIN or a picture of the warranty plate more can be learned about the transmission and axles etc.

The Super Duty engines are hard in gas and hard to get parts for.

A gas repower with a "Lima" 429 would be the logical choice as that's what Ford did.

More later but try to post that info and any pics you have.

 

I believe the 475 was in essence a 477 Super Duty without the warranty...a marketing gimmick. it was offered in 800's Super Duty started at 850

 

It's a 477 but I don't think it came without a warranty.

There are some brochures posted here and I will try to get them posted here later.

 

you could direct swap in any ford 401,475-477,and a ford 534 .these engines use a #2 bell-housing.the BBF 429 truck engine swap will require the correct bbf bell-housing and flywheel if it is a manual transmission .a ford 460 can be swapped in if you have the correct iron timing chain cover , from a ford 370-429 truck engine

 

Although the F and L models look completely different there is one easy way to tell
All L models had tilt forward front ends, hood and fenders were fiberglass and tilted forward
F models up to 1980 had steel hoods and fenders that did not tilt forward, the hood opened like on a pickup

 

MY mistake...I should have said...."without the 100,000 mile engine warranty that the Super Duty engines had". It had a warranty for sure-but not for 100,000 miles.

 

Same story regarding 100,000 mile warranty:
https://www.ford-trucks.com/forums/4...uper-duty.html

More background:
https://www.ford-trucks.com/forums/1...d-f-880-a.html

Brochure, all pages visible if you have good eyes:
https://www.ebay.com/itm/275754834239

Same thing, seems like better page views:
https://www.etsy.com/listing/1238518...0-series-sales

 

1979 was the final year for the 475, because the 429 medium-duty V-8 was all new that year.

The 475 was a "stopgap" engine between the 391 FT (389 XD in 1975) and the 429. The 391/389 was the top-line engine in all the Ford medium-duty conventionals except for the 880s which had the requisite 475 under the hood.

Prior to mid-1972, Ford did not have a proper big V-8 that went head-on against Chevrolet's 427 V-8 or GMC's 478 V-6 nor other big V-8s such as IH's 478 or Dodge's 413; the 391 FT was the most powerful V-8 that was available for the existing 750 series, but it did not have the power or torque specs that Chevrolet's 427 had. On the other hand, the regular 477 Super Duty V-8 was only offered for the 900 series Class 8 trucks and that left Ford with a serious market disadvantage as only large Ford truck dealers could carry the 900/9000 series and their requisite engines.

So what did Ford do? It simply took the 477 and detuned it, and also did away with the 100,000-mile warranty to turn it into the 475; the 475 was first offered in the LT-880 and LNT-880 tandem-axle conventionals (Ford's answer to the Chevrolet JM-80, GMC JM-7500 and IH Fleetstar F-2010), and then extended in 1974 to the new F-880 single-axle conventional (to compete with the Chevrolet CE-65 and GMC CE-6500).

~Ben

 

 

a SAE bell housing was available for the 429 with the Allison transmission, one may be able to use that to connect the 475’s SAE transmission
Ive never seen a 460 with the large snout crank needed to seal the 429 trucks timing cover

 

The AT-545 had the SAE #3 bellhousing while the MT-640 and MT-643 both had the SAE #2 bellhousing. I believe most 429s had the SAE #3 adapter for the AT-545 but rarely the #2 for the MT-643.

The 475, being based on the 477 Super Duty, likely used the SAE #2 bellhousing for the MT-640 and MT-643 due to the higher HP above the 391-FT/389-XD.

~Ben

 

Similar to the old 391 and 401 SD choice, boils down to performance vs durability, which really depends on your particular application. But again its been over 4 decades since these were common and easily serviced by a network of Ford truck dealers, not any more.

 

a member on here replaced a wore out 370 with a 460 engine .he used the 370 cast iron timing cover but used a rear end pinion seal to allow for the smaller diameter 460 crank snout .I plan on making motor mount brackets for swapping in a 460 ,replacing the 534 .I see a 460 for sale on FB ,it has the transmission adapter,for a ford 385 bolt pattern to a SAE bell housing on a auto transmission .