I have a 2000 ranger 5 speed 3.0 with a cracked block. I want to put a 4.0 in is there any adjustments that needs to be made to motor mounts or anything else? Thanks to all that replys.

 

Yes, you have to change the motor mounts and transmission.

3.0l Vulcan engine(in rangers) has a unique bolt pattern for the transmission so you can't swap to any other engine size without also swapping the transmission.

You also need a 4.0l wiring harness and computer if that is what you use.

And frankly it wouldn't be a good swap even if it was easier.
2000 3.0l has 150 horse power
1990-2000 4.0l has 160 horse power
So only a 10 horse power gain, 6% increase in power

It would be better to just get another 3.0l, get it all running well and sell that ranger and buy one with a 4.0l.

OR............put in a 302(5.0l) V8, same amount of work as a 4.0l swap but with way more horse power, 215 horse power, 43% increase in horse power

 

This 5.0 swap...what year is this from? The new 2011 and up 5.0's are creating some much larger HP/TQ output, but I'm sure the engine management box and wiring will also be a "must do", along with a transmission change. If the ranger is a 4x4, the transmission and transfer case to a late model 5.0 might be a head hurter as well.

Has this been done?