Price: $406.28

Racing Beat Holley Manifold
1984-92 13B 6-Port Engines

The Racing Beat-designed intake manifold for the 1984-92 13B 6-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 RX-7 street or custom race applications.

Please note:  it is highly recommended that the intermediate housing be port-matched to the manifold (P/N 16476) when using this manifold with the 1984-5 13B 6-Port engine configuration.

All of Racing Beat's 13B aluminum intake 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. Each manifold is then hand-ported to match an intake port configuration for each specific 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 surface finished using a ball-burnishing process that enhances the final appearance of the aluminum material. 

If needed, an engine-to-manifold gasket (1984-85), (1986-88), or (1989-92), 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.