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: $406.28

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Include These Recommended Parts With My Order:

Intake Gasket - Engine-to-Manifold - 74-75 13B
Gasket 74-75 (#16732)
Price: $10.00
Intake Gasket - Engine-to-Manifold - 76-78 13B
Gasket 76-78 (#16733)
Price: $30.00

Holley Intake Manifold
74-78 13B Street Port *

Holley Intake Manifold
1974-78 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.

Installation Note:
Requires four (4) 5/16"-18 x 1.5"L fully threaded hex bolts and washers to mount a carburetor to the top plate.We suggest you thread the bolts from the underside of the top mounting flange forming mounting "studs" for the carburetor. Place the carburetor over the studs and secure with split washers and 5/16" hex nuts.

* 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.
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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... »more
Price: $10.00 ADD »

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... »more
Price: $30.00 ADD »

Weber Carb Base/Phenolic Spacer Gasket

Weber Carb Base/Phenolic Spacer Gasket

The Weber Carburetor Base and Phenolic Spacer Gaskets are used at the base of the carburetor, or on either side of the phenolic spacer. Sold individually, order the quantity required for your specific application. (Note: Two gaskets per manifold are... »more
Price: $6.07 ADD »

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