have a 91 lariat that i'm wanting to do a lightning swap with. current motor is the I6 4.9L with a bunch of room left over. i found an 04 5.4 3V for a decent price and was wondering if the stock eaton on the lighting motor will work on this one? if not, what should i be looking for. i know the 2V lightning motor has them, but the price is killing me. trying to see if i can piece one together for a better price (to top if off the 3V only has 1000 miles on it and it is complete for $1600).

any advice is appreciated,
Gus

 

No, the eaton fits only the 2v engines.... You will need the complete wiring harness, transmission, and pcm, and lots of custom work ie: instrument cluster, fuel system, etc. to get it to work.

 

well then that settles it. i'll be looking for the 2V.

 

http://cgi.ebay.com/ebaymotors/2000-...spagenameZWDVW

There is a complete kit, engine, tranny, computer, wiring harness... good luck!

 

Another thing you might want to think about is the fact that your truck is a 1991 - which is the previous generation vehicle. It's tough enough swapping a 4.2 to a 4.6 or a 5.4 (all modular motors) within the 1997 - 2003 vintage. you're going to have some significant headaches with this one - paricularly with the wiring. good luck!

 

'

That is for sure

 

the motor that is currently in there is a 4.9L and it is a pretty hefty size but with a massive amount of leftover room. the only thing i thought might be a headache are the motor mounts. but i could be wrong. it sure would be a sweet swap. hopefully we can get it to work.

 

Yes, it would definitely be awesome!

 

i posted up a help thread in the suspension section, if any of y'all have experience in that area i could use some help as well. i have picked 3 kits out that are in my price range that i would like to go ahead and do now. take a look and let me know which way i should go.
thanks,
Gus