Description
Part Number: BC3901
Brian Crower Honda/Acura B-Series VTEC Exhaust Valve Guides
Engineered from premium manganese silicon aluminum bronze alloy for extreme temperature resistance, low friction, and long-lasting valvetrain reliability in high-RPM and high-boost B-Series VTEC builds.
Key Features
- ☑ Precision CNC machined from high-grade Manganese Silicon Aluminum Bronze alloy
- ☑ Exceptional resistance to cracking, thermal degradation, and wear under elevated temperatures
- ☑ Reduced frictional drag and enhanced lubrication for high-RPM stability
- ☑ Direct-fit replacement for worn factory exhaust valve guides on 5.5mm stem applications
- ☑ 100% compatible with Brian Crower stainless steel valves as well as OEM valvetrain hardware
Technical Specifications
| Manufacturer | Brian Crower (BC) |
|---|---|
| Part Number | BC3901 |
| Application | Honda / Acura B-Series VTEC (B16A, B17A, B18C) |
| Valvetrain Position | Exhaust Side |
| Stem Diameter | 5.5mm |
| Material | Manganese Silicon Aluminum Bronze Alloy |
What’s Included in the Box
- Set of 8 Brian Crower Manganese Bronze Exhaust Valve Guides (BC3901)
- Manufacturer product specification guide
As an industry leader in performance engine hardware, Brian Crower delivers championship-winning valvetrain components trusted by top motor tuners globally. At JP Racing, we supply genuine Brian Crower components with expert advice and express UK shipping.




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