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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
| Application | Verification needed |
|---|---|
| Honda/Acura K-series builds with RBC manifold | Compatible 70mm cable throttle-body interface |
| OEM K20A2 / RSX Type-S-style throttle body | Confirm mechanical cable linkage, bore and mounting pattern |
| K-series engine swaps | Verify manifold, sensors, cable, ECU and clearance |
Fitment of BXIM-10300-70 is based on the installed engine/manifold/throttle-body combination, not a vehicle's year and trim alone.
Specifications
| Detail | Value |
|---|---|
| Brand | BLOX Racing |
| Manufacturer part number | BXIM-10300-70 |
| Product type | Throttle body adapter |
| Nominal bore size | 70 mm |
| Manifold application | Honda K-series RBC |
| Throttle operation | Cable-operated conversion |
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
- Verify the RBC manifold and compatible cable throttle body.
- Switch off the engine and follow the engine manufacturer's service precautions.
- Inspect mating surfaces and fit the specified gaskets.
- Secure the BXIM-10300-70 adapter and throttle body with the supplied mounting hardware according to the applicable service procedure.
- Use the supplied port plug as appropriate for the specific setup.
- Check throttle movement, cable return, sensor connections, clearances and vacuum sealing before driving.
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