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$4,274.00
Product Overview
The BC Brian Crower 2.5L Stroker Kit is designed for the 4B11T engine in the Mitsubishi Evo X, offering a high-performance upgrade with a 98mm stroke crank and sleeved 90mm bore capability. Built from aerospace-grade 4340 steel billet, the crankshaft is CNC machined to .0001" tolerances with stress-relieved, nitrided, and magna-flux inspected construction for durability under high RPM and boost conditions.
Key Features
- Includes I-Beam connecting rods with 5.659-inch center-to-center length
- Equipped with custom CP or JE aluminum forged pistons for any bore size and compression ratio
- Includes 5100 Series carbon steel wrist pins with optional 9310 alloy upgrade
- Pistons feature ductile iron plasma top rings, tapered second ring, and low-tension oil rings
- All components are fully system balanced for smooth engine operation
- Includes steel alloy wrist pins, full ring pack, and piston locks
Specifications
| Crankshaft Material | 4340 steel billet |
|---|---|
| Crankshaft Stroke | 98mm |
| Connecting Rod Type | I-Beam Extreme BC625+ |
| Piston Material | Aluminum forged (CP or JE) |
| Wrist Pin Type | 5100 Series carbon steel, optional 9310 alloy |
| Ring Pack | Ductile iron plasma top, tapered second, low-tension oil |
| Part Number | BC0136 |
Applications
- 2008-2015 Mitsubishi Lancer Evolution X (4B11T CZ4A Evo X GSR and MR models)
What's Included
- 4340 billet crank - 98mm stroke
- I-Beam Extreme BC625+ rods (5.659 c-to-c)
- ARP625+ Fasteners
- Custom pistons (choice of bore/compression)
- Wrist Pins, Full Ring Pack, and Locks