Correct Carb to Throttle body Gasket? -Holley 3810

[Gerard F.]

Redoing my 3810, and I am noticing a difference in the gaskets, Throttle Body to Carb Base.

The first picture is a supposedly correct gasket (from Chicago Corvette) for a 3810 with a 1-9/16" bore, which I have had on it but unused:

Holleygasketbase 1 9-16 (Medium).jpg

Notice all the extra holes in the gasket, especially along the throttle body secondary tracks, and the squared off sides.
With all these extra holes and I'm concerned that this gasket is going to easily leak after some use.

Here's a picture of a gasket from a generic Holley 4160 kit:

Holleygasketbase 1 1-2 (Medium).jpg

Notice that it has less holes, and fits the contour of the body along the sides, per the judging guide. It has a lot more gasket meat to cover the tracks in the throttle body. Only rub is that the bore is only 1-1/2" and I may have to trim the gasket in the bore to keep the throttle from sticking.

Which gasket would you use? Tim, are you there.

Having fun,

[King M.]

Re: Correct Carb to Throttle body Gasket? -Holley 3810

The first gasket pictured doesn't look like it mat he the base of carburetor. Id use the latter one pictured

[Timothy B.]

Re: Correct Carb to Throttle body Gasket? -Holley 3810

Hi Jerry,

There is no doubt the first gasket pictured will work even with all the holes but I like the second gasket much better but only if you don't need to modify the bore holes.