Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > Engine / Drivetrain Talk
Sign in using an external account
Register Forgot Password?

87 302 EFI to Carb. Conversion

Thread Tools Search this Thread Display Modes
Old 01-28-2012, 09:59 PM   #1
Junior Member
Join Date: Jan 2012
Posts: 3
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default 87 302 EFI to Carb. Conversion

Ive been having a lot of problems with the efi on my truck recently. Im tired of fooling around with all the sensors and harnesses and all the other crap thats with it. I have been looking around to find answers a few questions I have about this conversion. First off, what parts are needed. I know intake, carb., fuel pressure reg. I already have a msd dist. and 6al box on it. What other parts will I need? Also, the truck has a AOD trans. in it, when I pull the computer out of the truck with this affect that trans. at all? Thanks for the help fellas.
bbctruckz is offline   Reply With Quote
Old 01-29-2012, 12:14 AM   #2
Senior Member
5 Year Member
Join Date: Dec 2008
Location: Augusta, WV
Posts: 667
Mentioned: 0 Post(s)
Thanked 3 Times in 3 Posts
Feedback Score: 1 reviews

Leave the computer in to run the trans if it needs it, but I dont think it does being an 87 with the AOD.

You'll need to change your fuel pump to one that isn't high pressure, bolt the carb and manifold on and set fuel pressure to 5-5.5psi and your good to go!
2001 XLT Black Screw
5" RCX Lift on Kumho 35's
4.10s and locked
SCTX3 with Custom VMP tune
Dynomax full 3" exhaust
racin4ds is offline   Reply With Quote
Old 01-29-2012, 08:14 PM   #3
crush a little car today
5 Year Member
kaboom10's Avatar
Join Date: Jan 2008
Location: royal oak, mich
Posts: 1,048
Mentioned: 2 Post(s)
Thanked 7 Times in 7 Posts
Feedback Score: 0 reviews

Keep the pump and run excess fuel thru the return line. Worked for me.
2002 5.4L 4wd F-150 FX4
4.88 gears, trans shift kit, 4 link/triple adj coilovers are installed
Hawk/Performance Friction pads w/EBC rotors and stainless steel hoses. LiveWireIS tuned by myself w/SCT Pro Racer Package. twin turbos piece by piece and front coilovers.
kaboom10 is offline   Reply With Quote
Old 01-29-2012, 08:21 PM   #4
Paint it black
5 Year Member
blackbetty's Avatar
Join Date: Oct 2007
Location: washington dc
Posts: 2,666
Mentioned: 0 Post(s)
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Send a message via AIM to blackbetty

could use a fuel pressure regulator to squeez down the pressure
05 STX SuperCab 4.6L 4x4My truck build up link
Lightly modded 271.5/336.9 (sct)
blackbetty is offline   Reply With Quote
Old 01-29-2012, 10:27 PM   #5
Senior Member
Join Date: Dec 2011
Posts: 396
Mentioned: 0 Post(s)
Thanked 31 Times in 24 Posts
Feedback Score: 0 reviews

Is this a daily driven vehicle? If so, I'd think long and hard before doing it.

You will lose fuel economy (not that it gets great mileage to begin with) and it isn't going to be a simple plug and play operation. You do mention you've got a MSD distributor, but if it is an EFI one, it won't work with the conversion unless it has a provision for a mechanical and vacuum advance or plan on getting an add on ignition computer for the MSD. In any event, it is going to mean having to set a timing curve, jet the carb properly (granted, there's plenty of data out there) and fiddle with it until it finally runs right. Chances are you can probably fix whatever relatively minor (EEC-IV is stupid simple to work on with the right tools) problem you're having for less money and trouble than trying to convert it to a carb, and have a better running vehicle to boot.

Just my .02
byoungblood is offline   Reply With Quote
Old 01-31-2013, 10:22 AM   #6
Join Date: Jan 2013
Location: Springfield,IL
Posts: 6
Mentioned: 0 Post(s)
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews

Im thinking of doing this same conversion. I wanna keep the fuel pumpsand retain the use of the dual tanks . I wanna upgrade to a 351 windsor and go with the edelbrock performer cam, lifters,intake,carb add a mallory mechanical advance breakerless distributor. Is there any links on hooking up the fuel pressure regulator and feed back line thats on the truck Kaboom? as for keepng the EFI have fun with that. It will not run as well as the above combo this i know .
Reo28 is offline   Reply With Quote
Old 01-31-2013, 10:22 AM

Similar Threads
Thread Thread Starter Forum Replies Last Post
EFI to Carb conversion jaceporter 1987 - 1996 F150 9 04-11-2011 09:53 AM
Bad ECU, Carb Conversion walter34payton2002 Pre- 1987 / Classic Corner 2 10-10-2010 11:50 AM
efi to carb need help lance_m_01 1987 - 1996 F150 2 02-26-2010 08:34 PM
carb conversion tafmil Maintenance Shop 1 10-11-2009 12:01 PM
efi - carb conversion 302 krashink Pre- 1987 / Classic Corner 3 09-17-2007 03:19 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are Off
Refbacks are Off

Join F150 Forum


The Mustang Source

All times are GMT -4. The time now is 07:11 PM.

Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.