Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

302 swap?

Thread Tools
 
Search this Thread
 
Old Jan 28, 2015 | 05:22 PM
  #1  
erik68's Avatar
erik68
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 59
Likes: 0
302 swap?

can i put an
81 302 in a 77 ford f100 351c with out changing anything?
 
Reply
Old Jan 28, 2015 | 05:43 PM
  #2  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Nope.... different tranny bolt patterns.

Game over. Please try again.
 
Reply
Old Jan 28, 2015 | 05:53 PM
  #3  
erik68's Avatar
erik68
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 59
Likes: 0
same with manual and auto?
 
Reply
Old Jan 28, 2015 | 07:13 PM
  #4  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Originally Posted by erik68
can i put an
81 302 in a 77 ford f100 351c without changing anything?
Originally Posted by erik68
same with manual and auto?
^^^^^^That's a totally different question.

Your first post was simply swapping engines that are not of the same engine family... no luck there.

More info needed.... 2WD? 4WD? What trans do you have now? Type? Model Number? The more info you can provide usually results in better responses.
 
Reply
Old Jan 28, 2015 | 07:20 PM
  #5  
85e150's Avatar
85e150
Super Moderator
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Apr 2004
Posts: 34,517
Likes: 2,826
Club FTE Gold Member
OP says he as a 351C and wants to go to a 302, right?

351C and 302 have the same bell pattern.

OP has a '77, more likely OP has a 351M. No go, as per above posts.

More info needed as per previous post.
 
Reply
Old Jan 28, 2015 | 07:23 PM
  #6  
Conanski's Avatar
Conanski
FTE Legend
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
The 351c actually does use the small block trans bolt pattern so a 302 will bolt right up, the question is do you really have a 351c because it was never factory installed in a truck.
 
Reply
Old Jan 28, 2015 | 07:38 PM
  #7  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
Actually the 351c and 302 have the same bolt pattern for the bell housing. Now whether you actually have a 351c which was never offered in a Ford truck (not counting a Ranchero)is a different matter. There have been lots of 351m's that magically turned into 351c's because owners didnt want to tell their buddies thats what they had.

Sorry Paul I started this about 30 minutes ago and got called away. Didnt see your post til after I posted.
 

Last edited by gatorfor88; Jan 28, 2015 at 07:42 PM. Reason: I was pre-empted by Paul, Hell I was pre-empted by 85e150 too
Reply

Trending Topics

Old Jan 28, 2015 | 07:57 PM
  #8  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Egg on my face. I stand corrected and am man enough to state I am wrong. Thanks for setting me straight.

... I always thought the 351C and the 351M/400 are cousins and don't share the SBF pattern.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Jan 29, 2015 | 04:54 AM
  #9  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
They are cousins, but the 351c is more like a little cousin with a small block pattern while the 351m/400 are older cousins with a big block pattern.(Even though I have been corrected on here before by someone who says "small block and big block" is a Chevrolet term and was never designated that by Ford. I have heard it used my whole adult life so I choose to use it also)
 
Reply
Old Jan 29, 2015 | 03:38 PM
  #10  
erik68's Avatar
erik68
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 59
Likes: 0
ok thanks ill have to do a rebuild and save the cleaveland.
 
Reply
Old Jan 29, 2015 | 03:48 PM
  #11  
erik68's Avatar
erik68
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 59
Likes: 0
so how do know if i have a cleaveland or modified? its a 77 2wheel drive custom cab automatic,long bed
 
Reply
Old Jan 29, 2015 | 04:01 PM
  #12  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
The 351 c top 2 bell housing bolts are approximately 5" center to center. The 351m are approximately 7 3/4" center to center. Also the motor mounts for a cleveland only used 2 bolts to mount to engine. The 351 m uses 3.
 
Reply
Old Jan 29, 2015 | 04:25 PM
  #13  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
Originally Posted by gatorfor88
They are cousins, but the 351c is more like a little cousin with a small block pattern while the 351m/400 are older cousins with a big block pattern.(Even though I have been corrected on here before by someone who says "small block and big block" is a Chevrolet term and was never designated that by Ford. I have heard it used my whole adult life so I choose to use it also)
Gator, thanks for the clarification.

Originally Posted by erik68
ok thanks ill have to do a rebuild and save the cleaveland.
My apologies Erik.
 
Reply
Old Jan 29, 2015 | 04:34 PM
  #14  
NumberDummy's Avatar
NumberDummy
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
Club FTE Gold Member
Originally Posted by 85e150six4mtod
OP says he as a 351C and wants to go to a 302, right?

351C and 302 have the same bell pattern.

OP has a '77, more likely OP has a 351M. No go, as per above posts.
351C's were not installed in F100/350's.

351C = 1970/74 misc Ford/Merc Passenger Cars & Ford Ranchero's only.

351M = Misc 1975/79 Ford/Merc Passenger Cars - 1977/79 F100/350 - 1978/82 Bronco - 1980/82 F150/350.
 
Reply
Old Jan 29, 2015 | 07:31 PM
  #15  
gatorfor88's Avatar
gatorfor88
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
No thanks necessary Hi. You have educated me on here much more than I have you. Thank you
 
Reply



All times are GMT -5. The time now is 05:32 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE