What are the differences?

[StupidSheet]

Will a 99 SOHC engine take the place of a 97 OHV engine? If so will I have to swap over the ECU, wiring harness? Will the trans be the same?

 

[StupidSheet]

Wow 39 views and no one knows anything? FYI, I did do a search before asking this question. Did quite a bit of reading but never found the answer.

 

[Earl43P]

http://www.therangerstation.com/forums/showthread.php?t=115439

 

[StupidSheet]

Thx for the links Earl but unfortunately none of those are relevant to my needs. After reading here I have found that the only 4.0's that will interchange with the 97 is from 97-00. I found one in a 2000 Explorer but it's a SOHC instead of the OHV. I realize you can make anything work but I don't want a big project, it's my daughter's truck. I just want something that will drop in and fire up. If I have to swap the trans and electrical then so be it but my main concern is if the blocks are the same.

 

[AlaskanRider]

I just want something that will drop in and fire up.

It won't do that, which probably isn't what you wanted to hear.

I have HEARD of someone retrofitting an OHV wiring harness and computer to work on a SOHC engine, but he didn't say it ran well. For your daughters truck you would definately want to swap all the electrical.

I was thinking about doing a similar swap from a 98 explorer and decided that it would be a big experiment on some level.

my main concern is if the blocks are the same

http://www.therangerstation.com/forums/showthread.php?t=8426

In this thread a guy claims that the SOHC bellhousing has extra bolt holts, and that a SOHC trans works on an OHV but not the other way around. I think I had read this somewhere else also, when I was doing research for mine.

Why not just find another OHV? How much do you value your time?

 

[StupidSheet]

It won't do that, which probably isn't what you wanted to hear.

I have HEARD of someone retrofitting an OHV wiring harness and computer to work on a SOHC engine, but he didn't say it ran well. For your daughters truck you would definately want to swap all the electrical.

I was thinking about doing a similar swap from a 98 explorer and decided that it would be a big experiment on some level.



http://www.therangerstation.com/forums/showthread.php?t=8426

In this thread a guy claims that the SOHC bellhousing has extra bolt holts, and that a SOHC trans works on an OHV but not the other way around. I think I had read this somewhere else also, when I was doing research for mine.

Why not just find another OHV? How much do you value your time?

Ya I did read that about the guy splicing the harness. I do have a complete truck and can swap everything needed as long as it will fit properly. I don't want to be wasting my time trying to fab up engine mounts and the such. Yes I do value my time and I appreciate your reply very much. Thx.

I'm having a hard time finding the same engine so that's why I picked up this 99 Explorer. I guess I keep looking or try to make this fit. Hmmmm.

Thx again!