Intake Manifold Version 3 BLOX Racing Honda B-series

BLOX Racing Power Intake Manifold V3 – Honda B-Series VTEC B18C1

The BLOX Racing Power Intake Manifold V3 is a high-performance intake manifold designed for Honda and Acura engines equipped with the P72 B-Series VTEC cylinder head, including the Acura Integra GS-R B18C1.

Compared with the factory intake manifold, the BLOX Racing V3 features a larger plenum and longer runners to increase incoming airflow and air volume. The design is engineered to produce more usable horsepower across a wider RPM range.

Each intake manifold is balanced, pressure tested and tuned for consistent performance.

Features

• BLOX Racing Version 3 Power Intake Manifold

• Designed for Honda/Acura B-Series VTEC engines

• Fits P72 B-Series VTEC cylinder heads

• Suitable for B18C1 GS-R engines and JDM variants

• Larger plenum for increased air volume

• Longer runners for improved airflow

• Designed to increase usable power across a wider RPM range

• Standard throttle body opening: 64 mm

• Can be port matched up to 74 mm

• Pre-drilled for BLOX Racing surface-mount vacuum manifold block

• Vacuum block sold separately: PN BXAC-10010

• Compatible with factory and performance throttle bodies

For maximum performance, BLOX Racing recommends pairing the manifold with a BLOX Racing cast or billet throttle body, performance air filter and velocity stack.

Vehicle & Engine Applications

• Acura Integra GS-R 1990–2001

• Acura Integra GS-R 1994–2001

• 1.8L DOHC VTEC B18C1

• JDM B-Series VTEC variants using a P72 cylinder head

Installation Notes

Depending on model year and engine configuration, additional parts or modifications may be required. Certain 1996–2001 applications may require Type-R PCV hoses, a T-fitting, throttle cable or throttle cable bracket.

Always clean the intake manifold thoroughly before installation to remove any possible casting or packaging debris.

Professional installation is recommended. Always verify compatibility with your exact engine and vehicle configuration before installation.