• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

B2 engine swap with 4.2L engine


Eddiec1564

New Member
Joined
Aug 2, 2013
Messages
2
Reaction score
0
Points
1
Transmission
Automatic
I have a 89 Bronco2 with the usual dead A4LD tranny(3rd failure). I have a 98 F150 with a good 4.2L engine and 4R70W tranny. As I am tired of changing and rebuilding the A4ld, how would the 4.2L engine fit inside the Bronco2?

The tech section really talked about the 3.8L engine, but nothing about the 4.2L as for intake clearance. Has anybody done the newer 4.2L swap before?

The wire issue is not a problem for me as I have rebuilt several wire harness' for my vehicles before.
 


stegomon

stegomon

Active Member
V8 Engine Swap
Joined
Aug 9, 2007
Messages
2,177
Reaction score
20
Points
38
Age
39
Location
auburn/minot maine
Vehicle Year
1987/1990
Make / Model
fords and only
Transmission
Manual
The 4.2 is a 3.8. But the tec page I think is a genral swap idea. You could always put a carb on it...that may work. Or you could swap in a 4.0 swap with a manual trans.
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
stegomon said:
Or you could swap in a 4.0 swap with a manual trans.
Click to expand...
I think the point here is that he is sick of the A4LD, not the 2.9, and wants to keep an auto.

IMO the 4.2 is not worth the trouble, although the 4R70W is a stout transmission. I'd take a 5.0 for that setup before a 4.2, but if it's what you have it's what you have.
 

Eddiec1564

New Member
Joined
Aug 2, 2013
Messages
2
Reaction score
0
Points
1
Transmission
Automatic
Yep want to rid the A4LD tranny problems
As I have a 98 F150 with the 4.2L/4R70W setup fully functional I'm looking into using it in my B2. I got to get rid of the 98 F150 and slim down my "pick-a-part" vehicles.

I rebuilt the 2.9L engine, rebuilt the A4LD twice and sick of pulling it out!

I would go manual tranny, but when I rebuild the B2 for my 15yr old Daughter to drive, she will not learn the manual...sux, I rather use a manual tranny, kids now days....

302/AOD option is still there, but I have to rebuild the wore out 302 I have.
Another option I'm looking at is, making up a adaptor plate so I can use the AOD behind the 2.9L
 
kemicalburns

kemicalburns

New Member
Joined
Dec 1, 2008
Messages
89
Reaction score
0
Points
0
Location
Oregon City,OR
Vehicle Year
1994
Make / Model
Ford
Engine Size
5.8
Transmission
Automatic
so why is the current auto failing so much? who is doing the rebuild on the tranny? what size tires are you running?
 
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

Staff online

Members online

Total: 419 (members: 8, guests: 411)

Today's birthdays

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

Latest Album Photos

Hunters
20240409_190831.jpg
20240409_190818.jpg
20240409_180824.jpg
20240409_182648.jpg
20240409_181010.jpg
20240408_175026.jpg
99 Ranger
20200706_161414.jpg
20240207_155117.jpg
20240207_155111.jpg
20240207_154537 - Copy.jpg

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top