Quadrajet - Spread Bore Base Gasket
4 Hole design, (Thickness: .062)
Quantity: 1 gasket
Replaces Rochester OEM gasket # 1486564
Originally used on the following applications :
Cadillac 1967-69
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". Originally, the Stainless Steel heat shield went directly under carburetor and above the 'composition' base gasket. But now 50 years later the carb and intake manifold are not as flat anymore, so we recommend that an additional gasket be used on top of the stainlesssteel shim for better sealing.
Originally used on the following Rochester carburetor numbers:
7027230, 7027231, 7027233, 7027234, 7027235, 7028230, 7028231, 7028234, 7028235, 7028236, 7028237, 7028238, 7028239, 7029230, 7029231, 7029232, 7029233, 7037230, 7037231, 7037233, 7037234, 7037235
May also fit other applications.