Brian Crower 35mm Intake Valve Set (8pcs) Honda Civic Si 2006-2011 | BC3040

The Brian Crower BC3040 Intake Valve Set is a high-performance valvetrain upgrade for Honda and Acura K-series engines, including K20A2, K20A, and K20Z3 platforms. These are standard-size 35mm intake valves, designed to replace OEM valves while offering significantly improved strength, airflow efficiency, and high-RPM reliability.

This set is commonly used in built or performance cylinder heads where airflow, heat resistance, and durability become critical under aggressive tuning, forced induction, or high-revving naturally aspirated setups.

Key Features & Benefits

• Set of 8 intake valves (full engine set)
• Standard 35mm head diameter (OEM replacement size)
• One-piece high-strength stainless steel construction
• Friction-welded Stellite valve tips for heat resistance
• Undercut stem design reduces weight and improves airflow
• Swirl-polished finish for improved intake efficiency
• Designed for high RPM and performance engine builds

Performance Advantages

• Improved airflow into the combustion chamber
• Better high-RPM stability vs OEM valves
• Increased durability under boost or aggressive cam profiles
• Reduced valvetrain mass for faster response
• Better heat resistance for sustained performance use

Fitment

• Honda Civic Si (2006–2011 K20Z3)
• Acura RSX Type-S (K20A2)
• Acura TSX (K24 hybrid heads with K-series valvetrain)
• Other K20/K24 performance builds and swaps

Important Notes

• Standard size = direct replacement (no head machining required)
• Requires proper valve job and installation
• Recommended for built or performance-oriented engines
• Often paired with upgraded springs, retainers, and cams

Why Choose BC3040?

Brian Crower is a well-known performance brand in the Honda world, and these valves are designed for:

• High-RPM reliability
• Forced induction compatibility
• Improved airflow efficiency
• Long-term durability in built engines

They are a common upgrade in K-series engine builds where OEM valves become a limiting factor under increased power and RPM.