5.0 EFI to carb swap

[jkclifton]

I own a 1990 5.0 bronco. I hate EFI and want to either swap to a bigger motor or build a 5.0 with a carb. I think I have thought of everything. I just need to know how hard it realy is and are there any special tricks or problems I may run into? My other option is a 400 Im just not sure if it will bolt to my aod trans. I know there would be some fabrication getting it in but Im seriously thinking about it.

 

[Justshootme84]

Check out this thread in the 80-96 forum:

http://broncozone.com/forums/index.php?showtopic=12302

The 351M/400M motors will not bolt up to your AOD since the bellhousing bolt pattern is different. Welcome to Bronco Zone, JSM84

 

[Blue beast]

http://www3.telus.net/cbradley/Engine_Specifications.html That might make you change your mind.

 

[jkclifton]

Check out this thread in the 80-96 forum:
http://broncozone.com/forums/index.php?showtopic=12302

The 351M/400M motors will not bolt up to your AOD since the bellhousing bolt pattern is different. Welcome to Bronco Zone, JSM84

Thanks for the info in the link. It was just what I thought. Im glad I found and joined this site. Ill be around as much as I can be.

 

[Southern_Pride]

Get a 351c block and stick the 400 internals in it will bolt up to an aod. But thats a lot more work. Carb swap isnt really that difficult. But time consuming. Need a new ignition, intake, carb, fuel pump, need to drop the gas tank and change the pickup, need an aftermarket tv cable and a different throttle cable.

 

[b_c]

won't the obd need to be upgraded/downgraded?

peace,

b_c

 

[BLADE262US]

Good luck putting 400 guts in a 351C block . The main journals on a 351C are much smaller than the 400/351M so it wont just bolt in . And if you look the 351C has its own intake maifold for 2 bbl or 4 bbl this is due to the different deck height of the 351C . The C is a special motor some parts interchange with the 351M/400 but the technicals are way different . /emoticons/[email protected] 2x" width="20" height="20" />