Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


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#463805 11/20/21 03:53 PM
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Jerryg Offline OP
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Does anyone know if a Edelbrock 2101 intake manifold would fit on my 1960 impala with 348 cuin engine? thanks foir any help Jerry

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Jerryg #463810 11/20/21 07:09 PM
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The Edelbrock 2101 is a design that fits the small block Chevy engines. That is the engine that started life as a 265 and grew in displacement to as large as a 400 cubic inch engine.

The 348 is a completely different engine.


Rusty

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Jerryg #463821 11/21/21 11:56 AM
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OK thanks would an Edelbrock 2703 fit or which one is it I know it has to have an oil filler port? The one in my car is a 3749948 and it is a 3 two bbl setup and I am try to go to a regular 4 bbl carburetor. Or how do you determine which intake will fit?Thanks Jerry

Last edited by Jerryg; 11/21/21 06:19 PM.
Jerryg #463827 11/21/21 09:21 PM
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I would use the Edelbrock website/online catalog to determine if they even made a manifold to fit that engine. The 348 was only made from 1958 through 1964. The large displacement versions in the W series were the 409 and 427.

I am somewhat surprised that you want to get rid of the triple 2 barrel setup. They are not very common so are desirable.


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Jerryg #463840 11/22/21 09:21 AM
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Thanks and I agree but I am having so much trouble adjusting all the carbs, I am a little fustrated.

Jerryg #463843 11/22/21 10:01 AM
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Matching the air flow in all three carburetors is necessary for accurate adjustment. Find someone with the air flow meter or experience with multiple carburetor setups. They still exist but with fuel injection are not as plentiful as in the past. Drag racers should be able to help.

When those multi carb setups were introduced there was one guy in town that understood air flow and made a mint on tuning them.


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OK I will look thanks for the advice. Jerry

Jerryg #463849 11/22/21 01:07 PM
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Have you been able to determine is you have an original 3-2 set-up? A key point with the Rochester 2 GC's that were the secondary's (front & rear carbs) is to make sure the throttle plates are sealing in their respective bores completely. Otherwise air will leak in through them. They do not have idle circuits. You cannot compensate for that extra air by making the center carb richer.

I noticed that Edelbrock is saying they are introducing this manifold.

Edelbrock 7158

I strongly encourage you to get the 3-2 set-up working. They were quite a feature in those days.


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Jerryg #463872 11/23/21 08:59 AM
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I do have the Rochester 2 GC's and they have the secondary front and rear. The rear one was leaking a ot through the top of the carb so I had to change the needle valve on the float and I changed the gasket on the throttle plate.But I will recheck the seat. How do you tell if it is a "W" motor? thanks Jerry

Jerryg #463895 11/23/21 07:09 PM
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Jerryg

I have a original Chevy 348 4 barrel intake manifold that will fit that 1960 348 Motor . Email me at bwbugay@aol.com if you are interested .
Bruce

Jerryg #463928 11/25/21 12:37 AM
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The “W” designation is what Chevy called the engine series that started as the 348 and grew to be the 409 and ultimately a 427 which was a limited production engine. It was called a “W” engine due to the shape of the valve covers.

What can be confusing is that the “big block” Chevy that started life as the 396 also grew into a 427.

I check the throttle plate seating by looking through the carb at a light. If things fit correctly you should see at most a uniform thin semi-arc circle of light around both side of the each of the throttle plates. You will need to back the idle crew out so it does not hold the throttle shaft open at all.

Be very careful when you do this. You can scratch the bore or damage the edges of the throttle plate if you let the throttle snap shut quickly or you push the throttle closed tightly.

If the plates do not seal nicely I then loosen the screws that hold them in the shaft. I loosen them just enough that the plates can move around in the slot in the shaft. Then carefully close the throttle and the plates will center in the bores. The slowly and evenly retighten the screws. This will move the shaft a small amount because you are really repositioning the shaft to match the closed and centered plates.


Rusty

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