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SKU: BC3045
Brian Crower Honda/Acura K20A2/K20A/K24A2 31mm Exhaust Valves 2002-2006 RSX Type-S 2004-2008 TSX
Brian Crower BC3045 exhaust valves feature precise engineering for Honda K20A2, K20A, and K24A2 engines in Acura RSX Type-S and TSX models. This set of 8 valves with 31mm heads improves exhaust flow for higher RPM operation and power gains. Install them in street or track builds for reliable performance in demanding conditions.
Key Features
- 31mm Head Diameter: Larger than stock 30mm valves to improve scavenging, exhaust efficiency, and horsepower output
- Forged Stainless Steel Construction: One-piece design with heat treatment handles high temperatures, resists wear, and supports extended high-rev use
- 5.95mm Stem Diameter: Precision tolerances provide smooth valve guide fit, seal properly, and lower oil consumption
- 115.5mm Overall Length: Matches OEM specifications to preserve valve timing, spring pressure, and engine geometry
- Swirl Polished Finish: Minimizes flow turbulence for efficient exhaust evacuation and extended valve life under boost or high RPM
Product Notes
- Set includes 8 exhaust valves for full cylinder head service
- Pair with upgraded springs and retainers for high-lift camshaft applications
- Store in clean environment to avoid contamination prior to installation
Installation Notes
- Professional installation recommended.
- Valve seats and guides require machining to accommodate 31mm head size
- Compatible with OEM or aftermarket valve seals and keepers
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Acura | RSX | Type-S |
| 2004-2008 | Acura | TSX | Base |
Why Choose Brian Crower?
- Proven in championship-winning Honda race engines
- Made with strict tolerances for consistent performance
- Backed by engineering focused on K-series durability
Frequently Asked Questions
-
Q: Will BC3045 fit 2005-2006 Acura RSX Type-S K20A2?
A: Yes, direct fit for all 2002-2006 RSX Type-S with K20A2 engines including JDM K20A variants -
Q: What material are these valves made from?
A: One-piece forged stainless steel with specialized heat treatment for heat resistance and strength -
Q: Do these require special valve springs?
A: Stock springs work for mild builds. Upgrade to BC dual springs for cams over 11mm lift
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective foam-lined box
- Weight: 0.9 lbs
Brian Crower
Brian Crower is a California-based manufacturer of high-performance engine internals for Japanese performance platforms, stocked at Black Ops Auto Works. Shop Brian Crower camshafts, connecting rods, crankshafts, valve springs, retainers, valve guides, and gaskets for Toyota 2JZ and 3S-GTE, Nissan SR20, RB26, KA24, and VQ, Honda K-series, B-series, and D-series, Subaru EJ, Mitsubishi 4G63 and 4B11T, and Hyundai G4KF engines. Every product is filterable by year, make, model, and engine code so the correct part ships the first time. Black Ops Auto Works carries 270 Brian Crower SKUs across camshafts, rotating assembly, and valvetrain components. About Brian Crower Brian Crower has built a reputation among Japanese performance engine builders for precision-machined camshafts, forged connecting rods, and valvetrain components engineered for both street performance and dedicated race applications. The brand's Stage 1 through Stage 3 camshaft profiles and BC625+ connecting rods are wi...
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