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SKU: BC3134
Brian Crower Mitsubishi 4B11T Evolution X 35mm Intake Valves 2008-2015 Lancer Evo X
Brian Crower BC3134 intake valves feature a 35mm diameter for the Mitsubishi 4B11T engine in 2008-2015 Lancer Evolution X models. This set of 8 one-piece forged valves delivers increased airflow over stock 34mm valves to support higher boost and RPM. Direct replacement design ensures reliable performance in street and track builds.
Key Features
- One-Piece Forged Construction: Delivers high strength and fatigue resistance for turbocharged 4B11T engines running up to 40 psi boost
- 35mm Valve Head Diameter: Increases intake flow by 10 percent over OEM for better cylinder filling and power gains
- 89 Gram Valve Weight: Lightens valvetrain mass by 15 percent to allow higher revs without spring upgrades
- Swirl Polished Finish: Reduces stem friction and guide wear for longer valve life under extreme conditions
- Precise Dimensions: 110.60mm length, 5.96mm stem, 10mm reduced tip, 2.75mm dish matches Evo X head specs
Product Notes
- Set includes 8 intake valves only, exhaust valves sold separately
- Valve seats must be machined to accept 35mm oversize heads
- Ships in protective foam-lined box to prevent damage
Installation Notes
- Professional installation recommended.
- Full valve job required including 3-angle seat cut for proper sealing
- Compatible with stock or aftermarket retainers, springs, and seals
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Mitsubishi | Lancer | Evolution GSR |
| 2008 | Mitsubishi | Lancer | Evolution MR |
| 2010-2011 | Mitsubishi | Lancer | Evolution MR Touring |
| 2010-2015 | Mitsubishi | Lancer | Evolution GSR |
| 2010-2015 | Mitsubishi | Lancer | Evolution MR |
| 2015 | Mitsubishi | Lancer | Evolution Final Edition |
Why Choose Brian Crower?
- Race-proven in professional drag and time attack Evo X builds
- CNC-machined in Southern California with tight tolerances
- Backed by engineering focused on 4G turbo engine durability
Frequently Asked Questions
-
Q: Will BC3134 fit all 4B11T Evo X models?
A: Yes, designed for 2008-2015 Lancer Evolution X GSR, MR, MR Touring, and Final Edition with 4B11T engines -
Q: What material are these valves made from?
A: One-piece forged 4340 chromoly steel construction for heat resistance up to 1200 degrees F -
Q: What warranty is included?
A: One-year unlimited mileage manufacturer warranty against defects when installed by certified shop
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: 7 x 5 x 3 inch foam-lined box
- Weight: 1.8 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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Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...
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