Early Rotary & 1979-85 Mazda RX-7 : Intake Manifolds & Cover Plates

 : Intake - Manifolds &  Cover Plates : Holley Intake Manifold 74-78 13B Street Port

Holley Intake Manifold
74-78 13B Street Port *

Part Number: 16478

Price: $386.93

This part is on backorder. Estimated availability: 12/01/22
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Holley Intake Manifold
74-78 13B Street Port *

The Racing Beat-designed intake manifold for the 1974-78 13B Street Port rotary 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 13B intake 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 a vacuum source for power brakes.  If needed, an engine-to-manifold gasket (1974-75) or (1976-78), and/or Holley base gasket are available separately.

* Legal in California only for racing vehicles, which may never be used upon a highway.
  What does this mean? Click Frequently Asked Questions About Emission Laws And Regulations.
Made in the USAMade in the USA by Racing Beat, Inc.

Racing Beat Recommended Accessories:

Intake Gasket - Engine-to-Manifold - 74-75 13B

Intake Gasket - Engine-to-Manifold - 74-75 13B

The 1974-75 13B Engine-to-Manifold Mazda Factory gasket is intended to fit securely between the intake manifold and the engine. (Photo shown is of actual gasket) If you are installing a Racing Beat Holley or Dellorto intake manifold, two (2) Water... Intake Gasket - Engine-to-Manifold - 74-75 13B

Intake Gasket - Engine-to-Manifold - 76-78 13B

Intake Gasket - Engine-to-Manifold - 76-78 13B

The 1976-78 13B Engine-to-Manifold gasket is intended to fit securely between the intake manifold and the engine.  The Mazda OEM gasket is no longer available:  the gasket we supply is sourced from a respected Mazda aftermarket manufacturing... Intake Gasket - Engine-to-Manifold - 76-78 13B

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