2.9 Lower Intake Differences

[PetroleumJunkie412]

Just posting a few photos showing in mild detail the differences in lower intakes. Can take more detailed shots if there's interest.

Two biggest things of note are the reinforcement in the model year 1992 manifold, and the additional coolant ports in the Merkur manifold.

Merkur also uses a different thermostat to allow coolant to bypass and (I think) go to a rear seat heater core. Merkur also uses a different 9'oclock thermostat housing, and a different timing case cover with two more ports in the return side of the water pump.

The 1992 manifold is significantly heavier than the others, likely to the reinforcements.


Photos are large to show detail and part number revisions.

 

[Ranger850]

Lools like the Scorpio and 88 are almost twins.

 

[8thTon]

Which one works best with a set of 3 IDF Webers?

 

[8thTon]

Or maybe some DCNFs?

 

[Uncle Gump]

That later model manifold appears to have better defined runners and a bit more substantial through the center.

What do the other experts have to say about the differences?

What is the plan?

Something says to me... use the late model manifold.