Swapping an Explorer 4.0L engine into a Bronco II.

Lizzy26 · 08-12-2009, 07:47 AM

Morning everyone, has anyone on this site ever swapped a 2.6 L out of a 1984 Bronco II and replaced it with a 4.0L out of a 1993 Explorer. I am pretty sure it can be done with a few modifications to motor mounts and such, I'm just wandering if anyone around here has done this before and maybe has some insight into the project that I am about to embark on.
Thank you for any info.

**BrooklynBay** · 08-12-2009, 09:18 AM

Welcome to this forum! I've renamed, and moved your thread to the BII section. I'm sure that this swap has been done before.

410Fortune · 08-12-2009, 09:54 AM

many many many many many times this has been done!

Good news for you! 84 Bii with a 2.6L? cool! I have never seen the 2.6L only the 2.8L... do you have any pics?

93 explorer 4.0L is a perfect replacement, you will also need the 86+ style BII fuel system as the 4.0L is EFI

I converted my 88 BII from a 2.9L and 5 speed 1350 t case to a 93 4.0L and mazda 5 speed with 1354 t case about 10 years ago..... there is lots of information available for you to do this.

Motor mounts bolt up, the engine basically bolts in, just wiring and plumbing to be done

Lizzy26 · 08-14-2009, 08:30 AM

Thanks Fortune. well that's good news that they bolt right in, when you say I will have to get the fuel system out of another Bronco do you mean that the one on explorer will have to be replaced. My BII right now is in dire need of some TLC especially the tranny. Does the explorer tranny fit or is it to long. What about converting the explorer 4.0L to propane. That will get rid of the efi problems wont it.

08-12-2009, 07:47 AM	#1
Lizzy26 Wannabe Elite Explorer Rocky Mountain House, Alberta '93 XLT Join Date: Aug 2008 Posts: 3 Vehicle Specs (Original Poster)	Swapping an Explorer 4.0L engine into a Bronco II. Morning everyone, has anyone on this site ever swapped a 2.6 L out of a 1984 Bronco II and replaced it with a 4.0L out of a 1993 Explorer. I am pretty sure it can be done with a few modifications to motor mounts and such, I'm just wandering if anyone around here has done this before and maybe has some insight into the project that I am about to embark on. Thank you for any info.

08-12-2009, 09:18 AM	#2
BrooklynBay Aerostar Forum Moderator Brooklyn, NY 88 89 93 95 96 Aerostars Join Date: Nov 2005 Posts: 45,687 Vehicle Specs	Welcome to this forum! I've renamed, and moved your thread to the BII section. I'm sure that this swap has been done before. __________________ My list of useful threads. My photo gallery. My product reviews. My list of items for sale. Aerostar owners thread. Aerostar parts work in Explorers, Rangers, and Bronco II thread. History of the Aerostar thread. Aerostar Forum. New Members Forum. Ford/Lincoln/Mercury Forum.

08-12-2009, 09:54 AM	#3
410Fortune ELITE BRONCO2ERER Crawlorado B2 Mod Join Date: Aug 2000 Posts: 22,099 Vehicle Specs	many many many many many times this has been done! Good news for you! 84 Bii with a 2.6L? cool! I have never seen the 2.6L only the 2.8L... do you have any pics? 93 explorer 4.0L is a perfect replacement, you will also need the 86+ style BII fuel system as the 4.0L is EFI I converted my 88 BII from a 2.9L and 5 speed 1350 t case to a 93 4.0L and mazda 5 speed with 1354 t case about 10 years ago..... there is lots of information available for you to do this. Motor mounts bolt up, the engine basically bolts in, just wiring and plumbing to be done __________________ 96 Explorer daily driver build-1996 XLT 5.0L AWD to 4x4 conversion complete on 33's 88 BII 5.0L conversion - BII 5.0l drivetrain thread My Bronco II - 1988 Bronco II 4x4 V8 on 35's - registry and updates Wifes 07 FJ build - 2007 FJ cruiser locked and lifted

08-14-2009, 08:30 AM	#4
Lizzy26 Wannabe Elite Explorer Rocky Mountain House, Alberta '93 XLT Join Date: Aug 2008 Posts: 3 Vehicle Specs (Original Poster)	Thanks Fortune. well that's good news that they bolt right in, when you say I will have to get the fuel system out of another Bronco do you mean that the one on explorer will have to be replaced. My BII right now is in dire need of some TLC especially the tranny. Does the explorer tranny fit or is it to long. What about converting the explorer 4.0L to propane. That will get rid of the efi problems wont it.