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In automotive terminology—particularly concerning Mitsubishi Lancer and Evolution modifications—a half cut (frequently referred to as a front cut) represents the front portion of a donor vehicle sliced directly at the B-pillar. Typically imported directly from Japan (JDM), these assemblies serve as the primary foundation for engine swaps or full conversions of standard Lancer chassis into Mitsubishi Lancer Evolution specification (Evo I through Evo IX).
Core Components Included
- Engine & Transmission: The iconic 4G63T (2.0L Turbocharged) engine, 4WD manual or automatic transmission, transfer case, ECU, and the complete un-cut engine bay wiring harness.
- Front Suspension & Drivetrain: Front axles, driveshafts, front subframe, suspension assemblies, and high-performance braking systems (Brembo units on Evo IV through IX).
- Front Body Panels: Vented aluminum hood, front bumper assembly, left/right fenders, main headlight assemblies, and front grille.
- Front Interior: Complete dashboard assembly, instrument cluster, center console, steering wheel, pedal box assembly, and complete HVAC evaporator system.
Generational Breakdown
| Generation | Donor Chassis | Engine Base | Key Half Cut Features |
|---|---|---|---|
| Evo I – III | CD9A / CE9A | 4G63T (AWD) | Engine positioned on the left, transmission on the right. Direct swap option for Lancer CB series (GTI / Ebo) conversions. |
| Evo IV – VI | CN9A / CP9A | 4G63T (AWD) | Engine rotated 180° (engine on the right, transmission on the left). Features upgraded Brembo brakes (Evo V–VI) and larger intercoolers. Designed for Lancer CK series platforms. |
| Evo VII – IX | CT9A | 4G63T (AWD + ACD) | Equipped with Active Center Differential (ACD), twin-scroll turbocharger setup, and variable valve timing (MIVEC on Evo IX). |
Critical Technical Considerations
- Wiring Harness Integrity: Ensure the main wiring harness and ECU connectors remain uncut to prevent severe electrical faults during chassis integration.
- Full Drivetrain Requirements: A front half cut alone is insufficient for a complete 4WD conversion. You will additionally require a rear cut or rear differential assembly, rear suspension arms, AWD floor pan section, and an AWD-specific fuel tank.
- Sensor Verification: Verify the physical integrity of crucial factory sensors, including the Mass Air Flow (MAF) sensor, boost control solenoid, and intercooler piping components.
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