Guys and Gals, I finally picked up a truck I have wanted forever. its a first gen 4x4 long bed.

It currently has a 22r with a LCE kit, I think this one but it leaks oil and still dont have much pizzaz!
https://www.lceperformance.com/Build...-p/1011037.htm

I love this truck but would love it WAY more with an engine swap. This wont be a serious wheeler more of a DD and overland rig. I have been studying swaps for about a week for the 5vz and it looks really tight in the first gen truck.

this brought the 3rz into my mind. Is one of these motors considerably easier than the other? The HP of the 3rz is almost double the 22r but the Tq is just about the same. will my current transmission bolt up to either of these?

I'll continue to study on my own but any insight you guys can offer is GREATLY appreciated.

 

as far as transmission are you still running an L series (21 inches long)
or a later G or W series (25" long)?
if the L series they aren't exactly known to be strong (in 10 years of owning an 81, i went through a few of them)

most motor swaps are gonna require a bell housing swap

gonna need motor mounts etc. about the only one that would be a cheap/easy close to bolt in would be a 22RE (gonna need an ECU etc)