gasket question

[Vinnie]

Howdy,

I got this 4 bbl carb spacer (phenolic) from Edelbrock to go in between my 1406 carb that sits on top of the performer lb351-2v manifold. Now that I opened the package I realize there are no gaskets included.

What gaskets should I use? In particular between the spacer and manifold. The reason I'm asking is coz the manifold has 2 rectangular openings and all the gaskets I'm finding are either 4bbl or just one big square opening.

Does it matter which one I pick?

Cheers,

Vincent.

 

[goodnigh]

Howdy,

I got this 4 bbl carb spacer (phenolic) from Edelbrock to go in between my 1406 carb that sits on top of the performer lb351-2v manifold. Now that I opened the package I realize there are no gaskets included.

What gaskets should I use? In particular between the spacer and manifold. The reason I'm asking is coz the manifold has 2 rectangular openings and all the gaskets I'm finding are either 4bbl or just one big square opening.

Does it matter which one I pick?

Cheers,

Vincent.

Yes. From what you describe it is a dual plane and you need to keep

them seperate. The 4 barrel should be fine. If I am wrong you will soon get plenty of advice.

mike

 

[rcadd1ct]

Howdy,

I got this 4 bbl carb spacer (phenolic) from Edelbrock to go in between my 1406 carb that sits on top of the performer lb351-2v manifold. Now that I opened the package I realize there are no gaskets included.

What gaskets should I use? In particular between the spacer and manifold. The reason I'm asking is coz the manifold has 2 rectangular openings and all the gaskets I'm finding are either 4bbl or just one big square opening.

Does it matter which one I pick?

Cheers,

Vincent.

Is the phenolic spacer four hole or what?

1406 looks like a spread bore.....I thought the performer intakes were two rectangular openings at the carb?

 

[Vinnie]

The spacer has 4 holes just like the 1406.

I was wondering about keeping the dual planes separate but I'll do that and order 4bbl gaskets if I cant find dual plane ones.

Thanks!

 

[mustang7173]

Vinnie,

Can you provide a part number of the spacer?

One I saw was 8722

8711

8713

mustang7173

 

[Vinnie]

I've got the 8711.

 

[rcadd1ct]

I would do a four hole between the carb and the spacer, them a one big open between the spacer and the manifold.

*******IMPORTANT**********

Make sure the throttle opens and closes smoothly, then torque the bolts in a cris cross pattern. Then verify the throttle opens and closes smoothly again.

 

[Jeff73Mach1]

I would do a four hole between the carb and the spacer, them a one big open between the spacer and the manifold.

*******IMPORTANT**********

Make sure the throttle opens and closes smoothly, then torque the bolts in a criss cross pattern. Then verify the throttle opens and closes smoothly again.

what he said

 

[mustang7173]

Vinnie,

Since you have a Spread Bore Carb, you may want to look into this spacer, 8726.

Per rcadd1ct comments, you will need to check the throttle plates for clearance.

mustang7173 :bravo:

 

[basstrix]

Although there is a difference in size of primary vs secondaries on the carb he's using, I think Edelbrock still considers it a square bore carb.

 

[Vinnie]

On the 1406 the diff between primary and secundary is not this much. Infact I'd say they are almost equal in size so that gasket won't fit...

 

[rcadd1ct]

as long as it bolts up.....

Main concerns are:

It sealing well

The gasket being supported so it does not get ingested by the engine

Not interfering with throttle operation

Since you are basically stacking gaskets, not to warp or break the carb ears by over torqueing the hardware.

 

[c9zx]

Buy two 4 hole gaskets and cut/trim one of them to fit the two oval openings in the manifold. I've done this several times with no problems. Chuck

EDIT: This is an insulating gasket that may also work. https://www.holley.com/products/fuel_systems/carburetor_components/carburetor__gaskets/parts/108-18

 

[goodnigh]

I would do a four hole between the carb and the spacer, them a one big open between the spacer and the manifold.

Like that.

mike

 

[Vinnie]

Like the one from Holley, I also found this one from Edelbrock:

http://www.summitracing.com/int/parts/edl-9266/overview/

When I use this, I don't need additional gaskets?

 

[Vinnie]

Anybody have any experience with these gaskets:

- http://www.quickfueltechnology.com/4150-4160-flange-gasket-4-hole-2.html

They're for a Holley 4160 but will they match an Edelbrock 1406?