Quadrajet - Spread Bore Base Gasket
Open design, (Thickness: .062" )
Quantity: 1 gasket
Replaces Rochester OEM gasket # 1378509
Originally used on the following applications:
Buick 1966-67
May also fit other applications.
This gasket must be used in conjunction with:
#1720A, Stainless steel metal shim (See gaskets below in the " We also recommend" section)
The combination of composition base gaskets and steel shim gasket are used on some models with exhaust gases running directly under the carburetor to avoid "burn thru". Stainless Steel heat shield goes directly under carburetor and above 'composition' base gasket.
Originally used on the following Rochester carburetor numbers:
7026240, 7026242, 7027146, 7027148, 7027149, 7027240, 7027241, 7027244, 7027246, 7027248, 7036240, 7036242, 7040307, 7041304, 7041305, 7041306, 7041308, 7041309
May also fit other applications.