Intake Manifold Gaskets? Which One?

[dginn911]

I am in the process of replacing my 4.3L V6 engine block (EFI) and recieve two different sets of lower intake manifold gaskets from the engine supplier. One set has all the water ports open, the other set has the Rear 2 water ports closed off. Which one should be used?

 

I am assuming that the ALL OPEN ports gasket should be installed. Please Help!

 

The vehicle is a:

1987 Chevy 1/2 ton Pick-Up

4.3L V6 EFI

2 Wheel Drive

[Draenor]

You'd have to pull the origonal and see.

[VR021302]

[Zembonez]

Some "universal" gasket sets have duplicates that fit different year models. Once you pull your intake, you'll simply match up the one that is there.

 

Welcome to the ZOO!

[Alljackedup408]

[pennzoil29]

Some "universal" gasket sets have duplicates that fit different year models. Once you pull your intake, you'll simply match up the one that is there.

 

Welcome to the ZOO!