1964 Holley 2818 Carburator replace manifold gaskets

[Robert K.]

I just rebuilt a Holley 2818 carb for my 1964 365 hp vette; in the kit there were two gaskets for the manifold one heavy (thick) with three port holes, 2 individual and one for two ports, and another thin paper gasket with two port holes, for two port holes for each opening, which one do I use?

Note: the carburetor I took off was not the original and it had three gaskets on top of each other; so I couldn't use that as an example to replace. And can't use both gaskets together or they will suck from one port to the other.

Can any of you Help me with this little dilemma?
Thanxs....

[Clem Z.]

Re: 1964 Holley 2818 Carburator replace manifold gaskets

I just rebuilt a Holley 2818 carb for my 1964 365 hp vette; in the kit there were two gaskets for the manifold one heavy (thick) with three port holes, 2 individual and one for two ports, and another thin paper gasket with two port holes, for two port holes for each opening, which one do I use?

Note: the carburetor I took off was not the original and it had three gaskets on top of each other; so I couldn't use that as an example to replace. And can't use both gaskets together or they will suck from one port to the other.

Can any of you Help me with this little dilemma?
Thanxs....

use the one that matches the intake manifold opening

[William F.]

Re: 1964 Holley 2818 Carburator replace manifold gaskets

What is the reasoning behind the "3" hole arrangement of the aluminum higher performance engine intake manifold design?

[Clem Z.]

Re: 1964 Holley 2818 Carburator replace manifold gaskets

What is the reasoning behind the "3" hole arrangement of the aluminum higher performance engine intake manifold design?

may have something to do with plenum volume or fuel distribution

[Robert K.]

Re: 1964 Holley 2818 Carburator replace manifold gaskets

What is the reasoning behind the "3" hole arrangement of the aluminum higher performance engine intake manifold design?

gasket has two small port holes and the other hole is open between the other two ports hope that helps your question?