Brian Crower Oversized Inconel Exhaust Valves for Toyota 2JZ (+1 mm) (BC3303-INC)

When building an extreme high-horsepower 2JZ engine, exhaust valves must withstand enormous heat and cylinder pressure while maintaining precise valvetrain control at elevated RPM. The Brian Crower Oversized Inconel Exhaust Valves are engineered to provide maximum thermal resistance, increased exhaust flow, and uncompromising reliability for the most demanding street and motorsport applications.

Featuring a +1 mm oversized head diameter, these valves significantly improve exhaust flow capacity compared to standard-size valves, making them ideal for ported cylinder heads and fully developed high-boost engine builds. Manufactured from premium Inconel alloy, they are specifically designed for engines operating under extreme exhaust gas temperatures where conventional stainless steel valves may be pushed beyond their limits.

The undercut stem design reduces overall valve weight while improving exhaust gas evacuation from the combustion chamber, supporting extended RPM capability and greater engine efficiency. Each valve is fully machined and swirl-polished beneath the valve head to optimize gas flow and ensure consistent performance under the harshest operating conditions.

Supplied as a complete set of 12, these oversized Inconel exhaust valves are the ultimate upgrade for professional-level drag, drift, and circuit builds.

Trusted by professional engine builders and motorsport teams worldwide, Brian Crower valves are a proven solution for unlocking the full potential of Toyota’s legendary 2JZ platform.

Carefully selected for builders who demand proven performance without compromise.

Why Upgrade Your Exhaust Valves?

Compared to factory exhaust valves:

✔ +1 mm oversized head increases exhaust flow capacity
✔ Premium Inconel construction for exceptional heat resistance
✔ Designed specifically for high-boost and high-horsepower applications
✔ Undercut stems reduce weight and improve gas flow
✔ Ideal for extreme street and motorsport builds

Key Features

✔ Genuine Brian Crower oversized Inconel exhaust valve set
✔ Manufactured from premium Inconel alloy
✔ Fully machined and swirl-polished under the valve head
✔ Dished exhaust valve design
✔ Optimized for extreme temperature environments
✔ Complete set of 12 valves

Technical Specifications

✔ Brand: Brian Crower
✔ Part Number: BC3303-INC
✔ Product Type: Oversized Exhaust Valve Set
✔ Valve Material: Inconel Alloy
✔ Valve Type: Exhaust / Dished
✔ Valve Size: +1.0 mm Oversized
✔ Head Diameter: 30.0 mm
✔ Stem Diameter: 5.97 mm
✔ Overall Length: 99.1 mm
✔ Quantity: Set of 12 Valves
✔ Engine Family: Toyota JZ-Series

Compatible Engines

✔ 2JZ-GE
✔ 2JZ-GTE

Shipping

🇪🇺 EU Delivery: 5–10 Business Days
🌍 International Delivery: 7–21 Business Days