Is exhaust manifolds from 4.0 fit to Bronco2's 2.9 ?

[RoboCop]

Hi, comrades! It's my first question on this forum. Before I was just only reader for some years.
So, I have a trouble. During work on my new Bronco II I found that right exhaust manifold was cracked by two pieces. Car - is regular 1989 Bronco 2, XLT, 2.9 EFI, 4x4. I live in Russia and it add troubles with it.
I can buy a new exhaust manifold from Rockauto, but shipment from USA will be costs for me more than manifold itself. It hurts. So - it will be a "Plan B" if all other thing will go wrong.
I trying to find it from "junkyards" here, but our aftermarket for such parts is bad. Such cars like Bronco 2 in Russia is becoming less and less, respectively, too few parts. I can't find used manifold from 2.9, but there is from Explorer's 4.0 (first generation).
And finally question is: will the exhaust manifolds (right and left) from Explorer's Cologne 4.0 fit to the 2.9 Bronco II's heads and Y-pipe?
I don't want to change Y-pipe to Explorer's so I have that question.

I know that partnumbers for Bronco2's and Explorer's manifolds differs. But visually they differs not too much. So - is there some hope for me?
Or I must use only original for 2.9?

Has anyone encountered a similar problem?

 

[fastpakr]

You won't be able to use a 4.0 manifold with a 2.9, sorry.

 

[Ranger850]

bronco 2's and Rangers share a lot of the same parts. So look for a Ranger or any "other" ford 2.9L engine and use that manifold.

 

[alwaysFlOoReD]

I do remember another thread, maybe started by KopyKat, that said the 2.9 and 4.0 were interchangeable.
Can you take the old manifold into the yard with you to compare?
Anyone out there have the parts in hand to compare?
If necessary the y-pipe can be cut and fit but if the manifolds fit I suspect the 2.9 y-pipe will too.

 

[fastpakr]

I think the y pipe may actually be the same, but not the manifolds. Shame AllanD isn't around much, he'd know off the top of his head for sure.

 

[adsm08]

I think the y pipe may actually be the same, but not the manifolds. Shame AllanD isn't around much, he'd know off the top of his head for sure.

The Y-pipe is the same, more or less. I believe the issue comes at the head, as the exhaust manifold gaskets have different part numbers. It's probably an issue with bolt hole arrangement or port spacing.

 

[alwaysFlOoReD]

https://therangerstation.com/forums/showthread.php?t=111278

While the bolt pattern may be the same for the exhaust manifolds the 4.0 ports are larger.

Also a 4.0 has a higher block deck than a 2.9 to accomodate it's longer stroke

To the Y-pipe that connects the header will be around 1.5" too narrow.


On the factory manifolds both engines use the same Y-pipe because
the 4.0 cast manifolds hug the block more.

AD

Sounds to me that the 4.0 manifolds will work with the 2.9 engine with some work on the y-pipe.

 

[adsm08]

https://therangerstation.com/forums/showthread.php?t=111278



Sounds to me that the 4.0 manifolds will work with the 2.9 engine with some work on the y-pipe.

Basically it would work but you'd need a matched set of manifolds.