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-   -   Carb Adapter / Spacer Question (https://67-72chevytrucks.com/vboard/showthread.php?t=660796)

68_Step 02-19-2015 02:48 PM

Carb Adapter / Spacer Question
 
4 Attachment(s)
I am replacing a Holley 4776 (600cfm) with a Holley 3310 (750cfm). The manifold is an Edelbrock Performer 2.0 and it had what looks like an Edelbrock 2732 adapter for (Square Bore Carburetor, Spread Bore Manifold) between the manifold and 4776 carb. I am planning on using a 1" spacer with the 3310 to help with fuel line clearance. The question: since I will be using a 1" spacer, will I still need the adapter? This is going on the 78 1 ton listed below.

enaberif 02-19-2015 02:51 PM

Re: Carb Adapter / Spacer Question
 
That is either an adapter or a heat shield to help prevent heat into the carb.

68_Step 02-19-2015 04:59 PM

Re: Carb Adapter / Spacer Question
 
Quote:

Originally Posted by enaberif (Post 7056389)
That is either an adapter or a heat shield to help prevent heat into the carb.

If you are talking about the pic of the thin metal plate; that looks a lot like the Edelbrock adapter http://www.summitracing.com/parts/edl-2732

I was wondering if I need to have that adapter AND the new 1" spacer. Originally there was just the adapter and the 4776 carb. With the new carb (3310) and 1" spacer, do I still need the adapter, or will the spacer serve that purpose too?

In the pics above, the black 4 hole is the 1" spacer.

geezer#99 02-19-2015 06:05 PM

Re: Carb Adapter / Spacer Question
 
You need both with that type of spacer.
You need a gasket, the thin (original) plate, another gasket, the new spacer and then a gasket on top.

68_Step 02-19-2015 08:52 PM

Re: Carb Adapter / Spacer Question
 
Quote:

Originally Posted by geezer#99 (Post 7056637)
You need both with that type of spacer.

Because the bottom is not solid? Or...?

enaberif 02-19-2015 09:37 PM

Re: Carb Adapter / Spacer Question
 
Quote:

Originally Posted by 68_Step (Post 7056907)
Because the bottom is not solid? Or...?

You need a flat surface for the spacer since its hollow underneath.


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