Notices
1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

300 engine

Thread Tools
 
Search this Thread
 
Old May 26, 2020 | 09:16 PM
  #1  
Branden Heine's Avatar
Branden Heine
Thread Starter
|
Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
300 engine

Is it possible but I guess anything is possible my question is can I put a late 80’s to 90s 300 straight six in my truck that is fuel injected what motor mounts would I need are were they the same through the years and what are really the challenges of doing that swap and could I use the transmission and what transmission would be better automatic or manual thanks for the help as I’m clueless

my truck is a 66 f100 with a 4spd and a 352 that’s locked tight
 
Reply
Old May 27, 2020 | 04:48 AM
  #2  
User 71024's Avatar
User 71024
Cargo Master
Joined: Sep 2005
Posts: 2,954
Likes: 64
Would be a lot cheaper and easier to have a 352 or 390 rebuilt. You obviously have no clue as how to do this, so you will rely on whoever you find to do the work and make the recommendations. And that is a crap shoot.
 
Reply
Old May 27, 2020 | 06:41 AM
  #3  
62SY4's Avatar
62SY4
Senior User
Joined: Dec 2018
Posts: 243
Likes: 4
From: Elizabeth
Originally Posted by EricJ
Would be a lot cheaper and easier to have a 352 or 390 rebuilt. You obviously have no clue as how to do this, so you will rely on whoever you find to do the work and make the recommendations. And that is a crap shoot.
IIRC, the OP is a relatively young man without much support from his family. But, I agree there are easier things to do. I'm not sure about everybody else's neck of the woods, but running FEs 352/360/390s bring $200-700 around here. That would be a cheap direct bolt in and surely the engine in the truck currently has parts that could be reused, if say the donor was a smog equipped latter engine. And you would have something that starts and runs and motivates you to keeps going, so what if it smokes and leaks oil, that's easier to fix down the road when time, money and experience come together.
​​​​
 
Reply
Old May 27, 2020 | 07:41 AM
  #4  
'65Ford's Avatar
'65Ford
Cargo Master
10 Year Member
Top Answer: 1
Joined: Jan 2016
Posts: 2,674
Likes: 376
Branden,

I've only worked on a '94 and a '95 with the 300 I6. These are both fuel injected. It might be the fastest and be the easiest to understand what you'll need for the swap if you find a donor truck. You'll see what you need in terms of motor mounts, electrical (sensors, controllers, computer, etc.). You'll also be able to get some rough measurements for locating tranny mounts and whether or not you'll have to modify a driveshaft. You'll also need a Haynes manual or equivalent to walk you through things like setting the timing, trouble shooting, etc of the 300 I6 with fuel injection and perhaps a OBD scan tool if you go with a mid '90's donor truck. This will give you an idea of the project scope. I imagine it will take a while to complete. Guys have done more radical swaps. One guy on this site swapped in a Volkswagen diesel....cool as heck imho.


Originally Posted by EricJ
Would be a lot cheaper and easier to have a 352 or 390 rebuilt. You obviously have no clue as how to do this, so you will rely on whoever you find to do the work and make the recommendations. And that is a crap shoot.
Did you get up on the wrong side of the bed? You basically said the OP doesn't know how to do something so just forget it."
 
Reply
Old May 27, 2020 | 11:11 AM
  #5  
TheMonson's Avatar
TheMonson
More Turbo
Joined: Oct 2014
Posts: 504
Likes: 4
From: Malheur County
^^ good advice on trying to find a donor. You should get the majority of the parts you need, additionally you might have means of recovering some of your investment. Some of these trucks were equipped w/ the I6 but I don't know if they used the same mounts or not.
 
Reply
Old May 27, 2020 | 11:39 AM
  #6  
James_Western_Canada's Avatar
James_Western_Canada
Laughing Gas
20 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2001
Posts: 1,062
Likes: 78
From: Edmonton, Alberta
Brandon: Swapping an engine to a later one, AND keeping the donor engine's EFI is not entry level stuff. It's great to have big plans, but it can also lead to another "unfinished project" for sale on craigslist. Taking an EFI 300 (4.9L) and converting it to carb'd can be done, the biggest PITA is (if they follow suit with the V8's) there is no boss to mount a mechanical fuel pump, so you have no choice but to run an electric pump. Staying with a factory carb'd 300 makes you life considerably simpler, and in case you weren't aware, the 300 uses the same trans bolt pattern as the 302/351, so any auto from a windsor will bolt right up. With manuals, you'll have to do your homework, as although the bell bolt pattern will be the same, I cannot tell you if the "depth" (measured from front to back) is consistent between the two engine series. Same goes for Flexplates/Flywheels, some research will be required....
I 'm sure as time goes by, and you gain experience, your capabilities will grow with that experience, but diving into the deep end can end badly, so do your homework BEFORE starting down a path, it will improve the odds of a successful outcome by leaps & bounds.

**and as far as engine perches for the various Ford engine families go, this is as good a resource as any I've seen....and it appears you're in luck, as the FE/I6 use the same perches

Comparison Photos of Engine Perches - FORDification.com


 
Reply
Old May 27, 2020 | 06:05 PM
  #7  
User 71024's Avatar
User 71024
Cargo Master
Joined: Sep 2005
Posts: 2,954
Likes: 64
Originally Posted by '65Ford
Branden,

I've only worked on a '94 and a '95 with the 300 I6. These are both fuel injected. It might be the fastest and be the easiest to understand what you'll need for the swap if you find a donor truck. You'll see what you need in terms of motor mounts, electrical (sensors, controllers, computer, etc.). You'll also be able to get some rough measurements for locating tranny mounts and whether or not you'll have to modify a driveshaft. You'll also need a Haynes manual or equivalent to walk you through things like setting the timing, trouble shooting, etc of the 300 I6 with fuel injection and perhaps a OBD scan tool if you go with a mid '90's donor truck. This will give you an idea of the project scope. I imagine it will take a while to complete. Guys have done more radical swaps. One guy on this site swapped in a Volkswagen diesel....cool as heck imho.




Did you get up on the wrong side of the bed? You basically said the OP doesn't know how to do something so just forget it."
No, actually the OP said he had no clue, I"m just trying to point out that if you have no idea what you are doing with an alteration you will be at the mercy of whoever you find to do the job. Over the years I have rescued a few people that got taken over the coals trying to get a car built and spend many thousands of dollars for no reason because they didn't have a clue what needed to be done.

This can be a fun inexpensive hobby or it can be an expensive life lesson. I just try and point out that simple is usually cheaper.

If he wants to play with a fuel injected pickup, he should buy an '85ish and learn from that. It'll be a lot cheaper than converting the '66. Like I said before it's got an FE in it, the easiest fix is another FE, either used or a reman.

And I always thought my attitude was enlightening.

 
Reply
Old May 27, 2020 | 06:10 PM
  #8  
Branden Heine's Avatar
Branden Heine
Thread Starter
|
Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
Originally Posted by EricJ
No, actually the OP said he had no clue, I"m just trying to point out that if you have no idea what you are doing with an alteration you will be at the mercy of whoever you find to do the job. Over the years I have rescued a few people that got taken over the coals trying to get a car built and spend many thousands of dollars for no reason because they didn't have a clue what needed to be done.

This can be a fun inexpensive hobby or it can be an expensive life lesson. I just try and point out that simple is usually cheaper.

If he wants to play with a fuel injected pickup, he should buy an '85ish and learn from that. It'll be a lot cheaper than converting the '66. Like I said before it's got an FE in it, the easiest fix is another FE, either used or a reman.

And I always thought my attitude was enlightening.
thank god I found a running 352 and I already have a 1990 Ford F-150 with a 5spd and a 4.9 so I’m already learning
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

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

 Verdad Gallardo
story-7

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

 Joe Kucinski
story-8

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

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Old May 28, 2020 | 06:47 AM
  #9  
'65Ford's Avatar
'65Ford
Cargo Master
10 Year Member
Top Answer: 1
Joined: Jan 2016
Posts: 2,674
Likes: 376
Good gravy, Branden. I was feeling kinda bad for you over EricJ's flippant response but then find out you have a 5sp/4.9 that you can just run outside and inspect. The 300 I6 spanned from carburetor to port injection...so pick your level of sophistication.

I'm now with EricJ and maybe you should just leave it be. In fact, I'm wondering what you mean by "locked tight". Few years back someone told me his 34 ton excavator engine was seized and he needed a new engine. So he let it sit in a field for over 2 years. All it needed was a starter relay.
 
Reply
Old May 28, 2020 | 07:23 AM
  #10  
Branden Heine's Avatar
Branden Heine
Thread Starter
|
Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
Originally Posted by '65Ford
Good gravy, Branden. I was feeling kinda bad for you over EricJ's flippant response but then find out you have a 5sp/4.9 that you can just run outside and inspect. The 300 I6 spanned from carburetor to port injection...so pick your level of sophistication.

I'm now with EricJ and maybe you should just leave it be. In fact, I'm wondering what you mean by "locked tight". Few years back someone told me his 34 ton excavator engine was seized and he needed a new engine. So he let it sit in a field for over 2
years. All it needed was a starter relay.
the rocker shafts were completely coated in rust so I dumped marvel down the cylinders let it sit for a week I put a breaker bar on the crank and broke the crank bolt off
 
Reply
Old May 28, 2020 | 02:44 PM
  #11  
jjriley97's Avatar
jjriley97
More Turbo
Joined: Mar 2019
Posts: 541
Likes: 37
From: Tulsa, OK
I have a 78 carbureted 300 with a 95 model ZF 5 speed in my 65. Parts are cheap and it is very easy to work on. When I ripped it down over the winter I found that it had already had the machine work done previously and it just needed all the gaskets replaced. I refreshed it for right at $300. Sucky gas mileage though.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rostena
Ford Inline Six, 200, 250, 4.9L / 300
2
Feb 19, 2012 08:56 AM
65_Guy
1961 - 1966 F-100 & Larger F-Series Trucks
5
Oct 4, 2010 02:46 PM
knibbeone
1961 - 1966 F-100 & Larger F-Series Trucks
2
Jul 13, 2009 06:00 AM
minishtr
1961 - 1966 F-100 & Larger F-Series Trucks
4
Sep 1, 2005 01:42 AM
MEPR
1961 - 1966 F-100 & Larger F-Series Trucks
5
Jun 13, 2005 08:10 AM




All times are GMT -5. The time now is 06:08 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE