BLOX Racing 70mm K-Series Throttle Body Adapter for RBC

70mm Cable Throttle Conversion for an RBC Intake Manifold

The BLOX Racing BXIM-10300-70 throttle-body adapter connects a compatible 70mm cable-operated K-series throttle body to an RBC intake manifold. It provides the mounting interface used in select Honda and Acura K-series builds with mechanical throttle control.

Confirm that BXIM-10300-70 matches your planned RBC manifold, cable-throttle interface and engine-management setup before installation.

Key Features

• 70mm nominal bore configuration for an RBC intake manifold.
• Adapts RSX Type-S / K20A2-style cable throttle bodies to the RBC interface.
• Manufacturer lists gaskets, hardware and a port plug.
• Useful in appropriately configured K-series swap applications.

Fitment

Fitment of BXIM-10300-70 is based on the installed engine/manifold/throttle-body combination, not a vehicle’s year and trim alone.

Specifications

What’s Included

• 70mm BLOX Racing throttle-body adapter
• Manufacturer-listed gaskets
• Manufacturer-listed mounting hardware
• Manufacturer-listed port plug

About BLOX Racing

BLOX Racing makes aftermarket performance components for Honda and Acura engine platforms, including K-series intake and throttle-body products.

Related Parts

• BLOX Racing 62.5mm RBC Adapter an alternative bore size for a different throttle-body setup; check exact application before ordering.
• BLOX Racing 70mm Dual-Pattern Throttle Body a separate throttle-body option that typically mounts directly to the RBC manifold without this adapter.

FAQ

What is the BXIM-10300-70?

A 70mm BLOX Racing adapter for fitting a compatible cable-operated K-series throttle body to an RBC intake manifold.

Does it work with the RSX Type-S throttle body?

The manufacturer lists the OEM K20A2 / RSX Type-S cable throttle body as a supported option.

Will it fit my K-swapped Civic?

Only if the swap has the specified RBC manifold, throttle body, cable setup and adequate clearance.

Is this a complete drive-by-wire conversion?

No. It is an adapter; other controls and components must match the conversion.

What size is the adapter?

This is the 70mm nominal bore version.

Are gaskets included?

BLOX Racing lists gaskets, mounting hardware and a port plug.

Does it include a throttle body?

The manufacturer describes an adapter, not a complete throttle-body assembly.

Can fitment be confirmed by model year alone?

No. The installed engine, manifold, throttle body and control configuration determine compatibility.

Installation Instructions

1. Verify the RBC manifold and compatible cable throttle body.
2. Switch off the engine and follow the engine manufacturer’s service precautions.
3. Inspect mating surfaces and fit the specified gaskets.
4. Secure the BXIM-10300-70 adapter and throttle body with the supplied mounting hardware according to the applicable service procedure.
5. Use the supplied port plug as appropriate for the specific setup.
6. Check throttle movement, cable return, sensor connections, clearances and vacuum sealing before driving.