INTAKE MANIFOLD GASKET, 12A 81-85 and 74-75
Mazda OEM intake manifold gasket for 74-75 and 81-85 12A’s
We recommend replacing the 2 water jacket O-rings whenever you have the manifold off.
| SKU: | 13-111B-1881 |
| Manufacturer SKU: | 1881-13-111B |
INTAKE MANIFOLD GASKET, 12A 81-85 and 74-75
$9.58
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GASKET SET 74-85, O-RINGS ONLY
Gasket Set 74-85, O-Rings Only
This kit contains:
Red Water Jacket Seals
Black Water Jacket Seals
Tension Bolt Seals
Rear Stationary Gear O-Ring
Dowel Pin O-Rings
Front Cover O-Ring
Oil Filter Stand O-Rings
Distributor O-Ring
SKU: 23-040B-1757 Manufacturer SKU: 1757-23-040B -
GASKET SET, RX7 81-82 12A —NLA—
GASKET SET, RX7 81-82 12A
Sorry, this item has been discontinued by Mazda.
SKU: 89-100A-N201 Manufacturer SKU: N201-89-100A -
MANIFOLD HOLLEY, 74-85 12A BRIDGEPORT
Holley Manifold, 74-85 12A Bridgeport (74-85)
The Racing Beat-designed intake manifold (1-9/16″ throttle bore diameter), for the 1971-85 12A Bridge-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake manifolds have proven themselves in a variety of street and race applications.
All of Racing Beat’s manifolds for Holley carburetor applications are sand-cast by a local foundries and delivered to our in-house production shop for all machining and surface finishing processes. Select manifolds are then hand-ported to match a specific intake port configuration for an intended engine application. Further machining is then undertaken to match the base-plate surface to the Holley carburetor base. These critical machining steps ensure a positive fitment between both the engine surface and the carburetor base. Every manifold is then surface finished using a ball-burnishing process that enhances the final appearance of the aluminum material. Once these labor-intensive processes have been completed these manifolds look as good as they perform!
This manifold includes does not include a vacuum source for power brakes. If needed, an engine-to-manifold gasket, and/or Holley base gasket are available separately.
SKU: 16466 -
WATER JACKET O-RING for Intake Manifold
Water Jacket O-Ring for Intake Manifold
We tested / looked at aftermarket O-rings but never found any that worked as well as these Mazda OEM ones.
We recommend using new ones anytime you are installing your intake manifold.
Needed on 1970 – 1992 non-6-port engines. This includes all the 86-92 Turbo rotor housings in case you are using those in another engine combo.
SKU: 13-1130-8527 Manufacturer SKU: 8527-13-113 -
MANIFOLD HOLLEY, 79-85 12A
Holley Manifold, 79-85 12A Stock port
The Racing Beat-designed intake manifold for the 1979-85 12A Stock and Street-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake manifolds have proven themselves in a variety of street and race applications.
All of Racing Beat’s rotary engine manifolds for Holley carburetor applications are sand-cast by a local foundry and delivered to our in-house production shop for all machining and surface finishing processes. All Racing Beat intake manifolds are hand-ported to match a specific intake port configuration for the intended engine application. Further machining is then undertaken to match the base-plate surface to the Holley carburetor base. These critical machining steps ensure a positive fitment between both the engine surface and the carburetor base. Every intake manifold is then surface finished using a ball-burnishing process that enhances the final appearance of the aluminum material. Once these labor-intensive processes have been completed these manifolds look as good as they perform!
This manifold includes a vacuum source for power brakes. If needed, an engine-to-manifold gasket (79-80) or (81-85), and/or Holley base gasket are available separately.
SKU: 16464
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The Racing Beat-designed Foam Air Filter Element for all 1971-85 Rotaries (except 1984-85 GSL-SE) consists of a polyurethane foam over a metal screen form that interchanges exactly with the stock element. The foam element can be re-used by periodically cleaning in solvent and re-oiling. While the element offers no significant increase in air flow when compared to a clean, stock paper element, as the paper element collects dirt its air flow capacity decreases dramatically while the foam element is nearly unaffected.
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