switch 5.0 ho efi to carb - Ford Truck Enthusiasts Forums



1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

switch 5.0 ho efi to carb

Reply
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 12-28-2009, 08:26 AM
cookieman69 cookieman69 is offline
Junior User
Thread Starter
 
Join Date: Nov 2007
Posts: 71
cookieman69 is starting off with a positive reputation.
switch 5.0 ho efi to carb

Hello, I have a 1955 f100 that I am installing the running gear out of a 1986 lincoln lsc what do I need to change motor to carb, also what computer to hook 4 speed aod Thanks for your HELP Mike
Reply With Quote
  #2  
Old 12-28-2009, 09:21 AM
sdetweil's Avatar
sdetweil sdetweil is offline
Post Fiend
 
Join Date: Nov 2000
Location: Liberty Hill, tx
Posts: 11,036
sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.
you need an intake manifold, carb of course, distributor, and linkage for the AOD, both the throttle valve (TV) cable and kickdown cable.

you MAY have to change the cam to be more carb friendly.

Sam
Reply With Quote
  #3  
Old 12-28-2009, 11:53 AM
52 Merc's Avatar
52 Merc 52 Merc is offline
Post Fiend
 
Join Date: Oct 2009
Location: Kennewick, WA
Posts: 6,870
52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of52 Merc has much to be proud of
The most important thing to know is when changing the distributor to an earlier type, you must make sure it has a steel gear compatible with the roller cam, or change it to one. Using the old iron gear will fill your crankcase with metal shavings in short order.

Depending on the transmission, you may not need a computer for it.
Reply With Quote
  #4  
Old 12-28-2009, 12:18 PM
sdetweil's Avatar
sdetweil sdetweil is offline
Post Fiend
 
Join Date: Nov 2000
Location: Liberty Hill, tx
Posts: 11,036
sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.
I bought a 86 Lincoln 5.0 HO motor and AOD to use in my (now green) truck.. in 2002

my son and daughter talked me into putting it into an 87 mustang (replacing the 4 cyl) instead, but I used the rear end.

Sam
Reply With Quote
  #5  
Old 12-28-2009, 04:37 PM
PerfDistIgnition PerfDistIgnition is online now
FTE Sponsor
 
Join Date: Aug 2006
Posts: 751
PerfDistIgnition is starting off with a positive reputation.
Quote:
Originally Posted by cookieman69 View Post
Hello, I have a 1955 f100 that I am installing the running gear out of a 1986 lincoln lsc what do I need to change motor to carb, also what computer to hook 4 speed aod Thanks for your HELP Mike
You'll need a distributor with advance weights, springs, and a vacuum advance to control your timing.



If you decide to get a new distributor, consider our custom curved Duraspark Distributor built with our new Full Length Oil Impregnated Bronze Bushing. The full length bushing improves timing stability and spark scatter. If stock appearance is not an issue, take a look at our one piece D.U.I. Distributor. Whether you choose the Duraspark or the D.U.I., we curve each on a distributor machine based on your engine combination. Please see them at:

http://performancedistributors.com/forddistributors.htm

Also, there is now an excellent installation article on the D.U.I. Distributor on the Ford-Trucks.com site at:

http://www.ford-trucks.com/article/idx/0/358/article/DUI_Ignition_Installation_In_A_Ford_351W_V8.html

Ignition Lesson of the Month: Hystereses, the difference between the timing as the rpm and vacuum increases to the timing as rpm and vacuum decrease, needs to be kept to a minimum. A precise advance curve accomplishes this.
Reply With Quote
  #6  
Old 12-28-2009, 06:16 PM
larryb346 larryb346 is offline
Elder User
 
Join Date: Nov 2008
Location: SW Missouri
Posts: 765
larryb346 has a good reputation on FTE.larryb346 has a good reputation on FTE.
You will also need to change the timing cover and install a cam eccentric for the fuel pump unless you use electric pump. If it has the double hump pan it might cause you a issue.
Reply With Quote
  #7  
Old 12-28-2009, 11:32 PM
BlueOvalRage's Avatar
BlueOvalRage BlueOvalRage is online now
Posting Guru
 
Join Date: Jun 2001
Location: Otterbein, Indiana
Posts: 2,223
BlueOvalRage has a good reputation on FTE.BlueOvalRage has a good reputation on FTE.BlueOvalRage has a good reputation on FTE.
Mike,

In addition to the other great information that you've already been given, here's a couple other tidbits. For your distributor, the most popular way to swap out the TFI unit used with the fuel injection is to get a distributor for a 1985 Ford Mustang with a 5.0L. This is the only non-EFI application that has a steel gear compatible with your roller camshaft. They aren't too terribly expensive to pick up as a reman from any local parts store. They are intended for use with Ford's Duraspark II electronic ignition modules which are fairly easy to hook up. You can also use them with just about any aftermarket ignition system as well.

No computer needed for your '86 model AOD. It's all hydraulically controlled. Just make SURE that you've got the throttle valve cable hooked up and PROPERLY adjusted before you drive it. That valve regulates the line pressure throughout the transmission based on throttle position. If it's not hooked up or not set right, you can lunch the transmission in just a couple miles. The hot ticket there is to use the cable Lokar makes specifically for use with a carb. Do a Google search for "AOD throttle valve" and you'll find a ridiculous amount of information on how to set it up. As for that big, intimidating plug stuck in the left side of the transmission, that would be the wiring for your neutral safety switch and backup light switch. There should be four wires. Red/blue stripe goes to the starter solenoid trigger terminal, white/pink stripe is power in from the "start" position of your ignition switch, purple/orange stripe is fused power in for the backup lights, and black/pink stripe is the feed out to the backup lights. Good luck!
Reply With Quote
  #8  
Old 12-29-2009, 07:43 AM
cookieman69 cookieman69 is offline
Junior User
Thread Starter
 
Join Date: Nov 2007
Posts: 71
cookieman69 is starting off with a positive reputation.
thanks for replies, I still need more specific info on particular parts but we are getting there( keep your cards and letters coming) you old timers will get that, blue oval how did you know that Big old Plug scared the Hell out of me ??
Reply With Quote
  #9  
Old 01-07-2010, 12:17 PM
FW Linc/Merc FW Linc/Merc is offline
New User
 
Join Date: Dec 2009
Posts: 5
FW Linc/Merc is starting off with a positive reputation.
I am doing the setup described now. In November I bought the turck and have a 89 302 HO motor and AOD in the garage for it. I did not want the EFI look so I decided to buy the parts to convert it. I have purchased an Edelbrock RPM air gap intake and a GM style HEI distributer. The Advantage to the GM style HEI is a one wire hookup (yes they make them specifically for the a 302 or 351). I will be using a 600 CFM Edelbrock carb to match with the RPM air gap intake. The 89 block does not have the provisions in the casting to mount a fuel pump so I will use an inline electric pump with a shutoff switch. I am still researching weather I HAVE to change the oil pan from the double plug style. I have bought a new steering column with column shift so I can use a LOKAR sytle connection to from the column to the AOD (I will fab this not buy LOKAR's). The AOD kickdown to mount to interface with the Edelbrock intake is available from LOKAR and is a required part to use the AOD. I have a 9" passenger car rear with 3:30 ratio so mileage and performance should be fine. I am waiting till my tax check to purchase No-Limit rack setup.

I will start in the spring assebling the parts but post how the progress is going.
Reply With Quote
  #10  
Old 01-07-2010, 12:27 PM
sdetweil's Avatar
sdetweil sdetweil is offline
Post Fiend
 
Join Date: Nov 2000
Location: Liberty Hill, tx
Posts: 11,036
sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.sdetweil has a spectacular reputation.
Quote:
Originally Posted by FW Linc/Merc View Post
I am doing the setup described now. In November I bought the turck and have a 89 302 HO motor and AOD in the garage for it. I did not want the EFI look so I decided to buy the parts to convert it. I have purchased an Edelbrock RPM air gap intake and a GM style HEI distributer. The Advantage to the GM style HEI is a one wire hookup (yes they make them specifically for the a 302 or 351). I will be using a 600 CFM Edelbrock carb to match with the RPM air gap intake. The 89 block does not have the provisions in the casting to mount a fuel pump so I will use an inline electric pump with a shutoff switch. I am still researching weather I HAVE to change the oil pan from the double plug style. I have bought a new steering column with column shift so I can use a LOKAR sytle connection to from the column to the AOD (I will fab this not buy LOKAR's). The AOD kickdown to mount to interface with the Edelbrock intake is available from LOKAR and is a required part to use the AOD. I have a 9" passenger car rear with 3:30 ratio so mileage and performance should be fine. I am waiting till my tax check to purchase No-Limit rack setup.

I will start in the spring assembling the parts but post how the progress is going.
you don't HAVE to change the oil pan, unless the install location requires it (cross member, exhaust, ...)

Sam
Reply With Quote
  #11  
Old 01-07-2010, 12:32 PM
ALBUQ F-1's Avatar
ALBUQ F-1 ALBUQ F-1 is offline
postin' fool
 
Join Date: Jul 2004
Location: NM
Posts: 21,361
ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.ALBUQ F-1 has a spectacular reputation.
Having lived with carbureted cars for half my life, and EFI cars for the rest, I can't believe anyone would toss an EFI system to go back to carburetors. Instead of changing all that stuff on the engine, why not mod the fuel tank and fuel system (pump etc) and retain the vastly improved driveability and economy of the EFI system? The wiring isn't that complex for EFI, most of it is taken care of at the end of the harness.

As far as looks, a 5.0/302 of any kind in a '55 isn't going to look "period correct" no matter what. It may be easier to get parts for than the correct Y-block, but no one is going to mistake it for an original engine.

Add up the costs, I think you'll find the EFI is cheaper and better than going carb'd.
Reply With Quote
  #12  
Old 01-07-2010, 09:01 PM
xfordman xfordman is offline
Elder User
 
Join Date: Sep 2004
Location: Grain Valley Mo.
Posts: 863
xfordman is starting off with a positive reputation.
I did this swap. Regarding the 1985 Ford Duraspark. You need a dist out of a 5 speed Mustang. They had roller cams but the auto Mustangs did not. Very important.....Rod
Reply With Quote
  #13  
Old 03-31-2011, 08:22 PM
SVT-F100's Avatar
SVT-F100 SVT-F100 is offline
Senior User
 
Join Date: Apr 2010
Location: Vacaville with SCAL love
Posts: 297
SVT-F100 is gaining momentum as a positive member of FTE.
Digging up old stuff but good info for me and possibly someone else some day.

Everyone has there opinion and if they want carbed that is cool with me. I, am going with what ALBUQ F1 though and staying EFI. Do I know how to do it? No Will I take the time and effort to make it work? Yes.

I have the 5.0HO in my garage and recently found this link for a harness that is matched to 5.0's and is designed to be plug and play as much as possible.

Painless Performance: Ford 1986 - 1995 5.0L Fuel Injection Wiring Harness Extra Length
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
added carb spacer and new carb. Should distribitor timing need to he changed any? ColtonMullis 1973 - 1979 F-100 & Larger F-Series Trucks 3 04-30-2014 09:47 PM
rebuild kit for 2bbl carb Hickfied 1973 - 1979 F-100 & Larger F-Series Trucks 7 09-28-2011 06:32 PM
302 2bbl to 4bbl carb gtuttle 1973 - 1979 F-100 & Larger F-Series Trucks 20 05-14-2009 01:51 PM
302 efi to carb joewaldner Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 34 07-17-2007 03:13 PM
when should a carb be rebuilt? 460way Fuel Injection, Carburetion & Fuel System 15 05-13-2006 03:22 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
302, 50, 87, cam, carb, carburated, carburating, converting, ford, fuel, ho, injection, lincoln, motor, mustang, start, switching, truck

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


All times are GMT -5. The time now is 07:36 AM.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.