🔧 Key Features
- 37mm Intake Valve Diameter – Optimized for proper airflow and performance
- OEM-Style Fitment – Direct replacement for VQ35DE cylinder heads
- High-Strength Alloy Construction – Built to handle heat and stress
- Precision Machined – Ensures proper sealing and longevity
- Ideal for Rebuilds or Performance Builds – Stock or upgraded setups
Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances. Brian Crower guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and RPM’s. The perfect replacement to worn or damaged guides and 100% compatible with Brian Crower lineup of stainless steel valves.
🚗 Engine Compatibility
Nissan / Infiniti
- VQ35DE 3.5L V6 Engines
(350Z, G35, Maxima, Altima… basically Nissan’s greatest hits of the 2000s.)
💡 Why Replace Intake Valves?
Over time, valves take a beating from:
- Heat cycles
- Carbon buildup
- High RPM stress
Common issues:
- Poor sealing (loss of compression)
- Burnt valve faces
- Reduced airflow
- Power loss
Upgrading or replacing them restores:
- Proper compression
- Efficient airflow
- Reliable engine performance
- Peace of mind (which is rare with a VQ)
Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances
Brian Crower guides are resistant to Cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and RPM’s
The perfect replacement to worn or damaged guides and 100% compatible with Brian Crower lineup of Stainless Steel valves
⚙️ Installation Notes
- Professional installation recommended (valve job required)
- Best installed during head rebuilds or engine refresh
- Pair with valve seals, springs, and guides for full reliability
🏁 Bottom Line
If you’re already inside your VQ35DE, replacing the intake valves isn’t optional—it’s smart.
The BC3220 37mm intake valve ensures your engine breathes properly, performs consistently, and doesn’t undo all your hard work later.
Because nothing hurts more than rebuilding an engine… twice.
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