bigger CID
Senior User
Joined: Mar 2013
Posts: 258
Likes: 0
From: Arkansas
i know the 351c's will bolt up to a small block tranny so I think it would work. However, I don't know how long your little C4 would last behind the 351c.....unless it has been beefed up. 351c's are more of a high RPM motor because of the larger valve and intake runners, above 2500 RPM's they are screamers...
Moderator
Joined: Jan 2001
Posts: 56,997
Likes: 2,743
From: Virginia
351c was never offered in these trucks except in Australia. But, you should be able to make things fit except the exhaust system. You will have to custom make that. And you need to check and make sure a 351m/400 rear sump oil pan will fit, or buy a rear sump oil pan for the 351c. Most 351c's are front sump engines like most Ford engines originally were.
More Turbo
Joined: May 2008
Posts: 585
Likes: 11
The 351C shares the same bellhousing pattern as the 300 six, 302 and 351W so it will bolt up. I'm not sure how long the C-4 will live behind it though. You'll most likely need a rear sump pan from a 351M/400. I can't remember for sure but I think the motor mount bolt pattern is the same between a Cleveland and Modified block, so mounts for a '80-'82 with a 351M or 400 should work. You'll also need to switch the frame mounts since the six cylinder mounts won't work.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
1980/83 F100 = Largest available V8: 302 2V
351C = 1970/74 Ford/Merc Passenger Cars only.
D0AZ-6781-D .. Pan Gasket: 1970/74 351C - 1975/82 351M - 1971/82 400.
E1TZ-6038-A (replaced D7TZ-6038-B) Right & E1TZ-6038-B (replaced D7TZ-6038-A) Left .. 351M/400 Rubber Insulators: 1977/79 F100/350 - 1978/82 Bronco - 1980/82 F150/350.
351C = 1970/74 Ford/Merc Passenger Cars only.
D0AZ-6781-D .. Pan Gasket: 1970/74 351C - 1975/82 351M - 1971/82 400.
E1TZ-6038-A (replaced D7TZ-6038-B) Right & E1TZ-6038-B (replaced D7TZ-6038-A) Left .. 351M/400 Rubber Insulators: 1977/79 F100/350 - 1978/82 Bronco - 1980/82 F150/350.
Moderator
Joined: Jan 2001
Posts: 56,997
Likes: 2,743
From: Virginia
The 351C shares the same bellhousing pattern as the 300 six, 302 and 351W so it will bolt up. I'm not sure how long the C-4 will live behind it though. You'll most likely need a rear sump pan from a 351M/400. I can't remember for sure but I think the motor mount bolt pattern is the same between a Cleveland and Modified block, so mounts for a '80-'82 with a 351M or 400 should work. You'll also need to switch the frame mounts since the six cylinder mounts won't work.
Trending Topics
Senior User
Joined: Mar 2013
Posts: 258
Likes: 0
From: Arkansas
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
351W intro'd in 1969 Passenger Cars, 1975 Econolines & 1981 F150/350's & Bronco's.
No 1980/83 F100 came w/a 351W, were available with: 300 I-6 & 302 2V (1980/83), anemic 255 2V (1981/82-some, depended on state emission requirements), 'miracle' 3.8L V6 (1982/83).
No 1980/83 F100 came w/a 351W, were available with: 300 I-6 & 302 2V (1980/83), anemic 255 2V (1981/82-some, depended on state emission requirements), 'miracle' 3.8L V6 (1982/83).
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
Is what he has really a 351C? I always question that because I have heard a lot of people say they have a 351C & when I saw it it was not a 351C. More times than not a 351M. If you look on this forum a 351C is grouped with the 335 series (351M/400/351C)
Craig
Craig
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
And, Ford called it a Cleveland originally. What are the casting #'s? I have a book and can look it up.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
351C: C = Cleveland ~ official FoMoCo terminology.
351M/400: The block is the same, so the block casting number (foundry mark) will be the same.
1977/79 F100/350, 1978/82 Bronco, 1980/82 F150/350: The block casting number is D7TE-6015-AB
Dunno what the block casting numbers would be for 351C/351M/400 Passenger Cars. There's at least two for 351C's.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
What book might that be? If it's the 'Red' book sold in book stores, it's not worth TWO CENTS! Has a gazillion errors and omissions.
351C: C = Cleveland ~ official FoMoCo terminology.
351M/400: The block is the same, so the block casting number (foundry mark) will be the same.
1977/79 F100/350, 1978/82 Bronco, 1980/82 F150/350: The block casting number is D7TE-6015-AB
Dunno what the block casting numbers would be for 351C/351M/400 Passenger Cars. There's at least two for 351C's.
351C: C = Cleveland ~ official FoMoCo terminology.
351M/400: The block is the same, so the block casting number (foundry mark) will be the same.
1977/79 F100/350, 1978/82 Bronco, 1980/82 F150/350: The block casting number is D7TE-6015-AB
Dunno what the block casting numbers would be for 351C/351M/400 Passenger Cars. There's at least two for 351C's.
As for mistakes, you mean it is similar to the master parts catalog?
According to it the 400 blocks were marked either D1AE-A or D1AE-AC, while the 351M blocks were marked: D1AE-A2C, which had both small-block and 385-series bolt patterns; D4AE-B2A; D5AZ; D7TE-A2B; and D8TE. Obviously I yield to your knowledge in this area, as I know is what I read in the newspapers/forums/books.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
Neither had parts catalogs, wouldn't know how to use them if they did. They based their info on vehicles they looked at...at junkyards, swap meets & car shows.
Someone else has updated and is publishing it today, he's just as clueless as the two clucks.
POS book also decodes part number prefixes, it's SOOOO WRONG .. that it's laughable!
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
This is not the Red book, it was originally published in the 1970's by two clueless clucks who were members of the Fabulous 50's Ford Club.
Neither had parts catalogs, wouldn't know how to use them if they did. They based their info on vehicles they looked at...at junkyards, swap meets & car shows.
Someone else has updated and is publishing it today, he's just as clueless as the two clucks.
POS book also decodes part number prefixes, it's SOOOO WRONG .. that it's laughable!
How many mistakes have you found? How many mistakes are yours, cuz you're misinterpreting it?
Neither had parts catalogs, wouldn't know how to use them if they did. They based their info on vehicles they looked at...at junkyards, swap meets & car shows.
Someone else has updated and is publishing it today, he's just as clueless as the two clucks.
POS book also decodes part number prefixes, it's SOOOO WRONG .. that it's laughable!
How many mistakes have you found? How many mistakes are yours, cuz you're misinterpreting it?
I've seen books like that, myself. Bought one on Super Bees and didn't get out of the store before I started laughing.
