Mitsubishi 4G63T Engine 2.0L Turbo
The Mitsubishi 4G63T is a 2.0-liter, turbocharged inline-4 engine widely regarded as one of the most durable and tunable 4-cylinder engines ever produced. Produced from 1987 to 2007, the 4G63T powered the legendary Lancer Evolution I through IX, Eclipse GSX, and Galant VR-4. Featuring a cast iron closed-deck block, factory forged connecting rods (Evolution models), and an almost indestructible bottom end, the 4G63T is capable of reliably supporting 400-600+ horsepower on stock internals and over 1,000 horsepower with proper modifications.
Parameter | Value |
|---|---|
Engine Code | 4G63T (various: 4G63, 4G63T, 4G63 EVO I-IX) |
Configuration | Inline-4 (Straight 4) |
Displacement | 1,997 cc (2.0L) |
Bore x Stroke | 85 mm x 88 mm (Undersquare / Long-stroke design) |
Cylinder Block Material | Cast Iron (Closed deck) |
Cylinder Head Material | Aluminum |
Valvetrain | DOHC, 4 valves per cylinder (turbo) / SOHC (naturally aspirated) |
Compression Ratio | 7.8:1 – 9.0:1 (depending on variant) |
Fuel System | Multi-Point Electronic Fuel Injection (MPFI) |
Ignition System | Distributor-based (early) / Coil-on-plug (Evo VIII/IX) |
Engine Weight (Dry) | 157 kg (346 lbs) |
Redline | 7,000 – 8,000 RPM (depending on variant) |
Variant | Application | Power | Torque | Key Features |
|---|---|---|---|---|
4G63T (Evo IX) | Lancer Evolution IX (CT9A) 2005-2007 | 286 hp @ 6,500 rpm | 289 lb-ft @ 3,500 rpm | MIVEC variable valve timing, forged internals, 8,000 RPM redline |
4G63T (Evo VIII) | Lancer Evolution VIII (CT9A) 2003-2005 | 271 hp @ 6,500 rpm | 271 lb-ft @ 3,500 rpm | Forged internals, no MIVEC |
4G63T (Evo VII) | Lancer Evolution VII (CT9A) 2001-2003 | 276 hp @ 6,500 rpm | 284 lb-ft @ 3,500 rpm | Forged internals, larger turbo than Evo VI |
4G63T (Evo VI) | Lancer Evolution VI (CP9A) 1999-2001 | 276 hp @ 6,500 rpm | 275 lb-ft @ 3,000 rpm | Forged internals, twin-scroll turbo (TME) |
4G63T (Evo IV/V) | Lancer Evolution IV/V (CN9A/CP9A) 1996-1999 | 276 hp @ 6,500 rpm | 260-275 lb-ft @ 3,000 rpm | Forged internals, reverse-mounted engine |
4G63T (Evo I-III) | Lancer Evolution I-III (CD9A/CE9A) 1992-1996 | 244-270 hp @ 6,000 rpm | 228-253 lb-ft @ 3,000 rpm | Forged internals, smaller turbo, distributor ignition |
4G63T (DSM) | Eclipse GSX/Talon TSi (1G/2G) 1990-1999 | 190-210 hp @ 6,000 rpm | 203-214 lb-ft @ 3,000 rpm | Cast pistons (vs forged), 6-bolt or 7-bolt |
4G63T (Galant) | Galant VR-4 (E39A) 1988-1992 | 195-240 hp @ 6,000 rpm | 203-228 lb-ft @ 3,000 rpm | Early 4G63T, 6-bolt block |
Closed-Deck Cast Iron Block: Solid cast iron construction with no open water jacket gaps around cylinders. Provides extreme cylinder support and eliminates bore flex under high boost (1,000+ HP capable).
Factory Forged Connecting Rods (Evolution models only): High-strength forged steel rods shot-peened from the factory. Capable of 500-600+ whp on stock rods.
Factory Forged Crankshaft: Nodular cast iron or forged steel crankshaft (depending on variant) with 8 counterweights for high-RPM stability.
MIVEC (Evo IX only): Mitsubishi's variable valve timing system on the intake cam improves low-end torque, throttle response, and fuel efficiency.
6-Bolt vs 7-Bolt Crankcase: Early 4G63T engines (pre-1992) feature 6-bolt flywheel/flexplate mounting and are known for superior crankwalk resistance. 7-bolt (1992+) is lighter but has higher crankwalk risk.
Piston Oil Squirters: Factory oil jets cool pistons and improve detonation resistance under high boost.
Squirters (Oil Jets): Directed at the bottom of each piston for enhanced cooling.
DOHC 16-Valve Cylinder Head: High-flow cross-flow design with mechanical lifters (early) or hydraulic lifters (later).
Cast Aluminum Oil Pan: Baffled design for high-G cornering.
Timing Belt (Interference Engine): Requires regular maintenance (60k mile intervals) to prevent catastrophic valve-piston contact.
Variant | Donor Vehicle | Years | Key Notes |
|---|---|---|---|
4G63T Evo IX | Lancer Evolution IX | 2005-2007 | Most desirable. MIVEC. Forged internals. 8,000 RPM. |
4G63T Evo VIII | Lancer Evolution VIII | 2003-2005 | Forged internals. No MIVEC. Excellent for high boost. |
4G63T Evo VII | Lancer Evolution VII | 2001-2003 | Forged internals. Larger turbo than Evo VI. |
4G63T Evo IV-VI | Lancer Evolution IV-VI | 1996-2001 | Forged internals. Reverse-mounted (Evo IV-V). |
4G63T Evo I-III | Lancer Evolution I-III | 1992-1996 | Forged internals. Distributor ignition. 6-bolt block. |
4G63T (DSM 1G) | Eclipse GSX / Talon TSi | 1990-1994 | 6-bolt block. Cast pistons. 190-195 hp. |
4G63T (DSM 2G) | Eclipse GSX / Talon TSi | 1995-1999 | 7-bolt block. Cast pistons. Crankwalk risk. 205-210 hp. |
4G63T (Galant) | Galant VR-4 | 1988-1992 | Early 6-bolt. Same as 1G DSM. |
1x Mitsubishi 4G63T Longblock (Cylinder head + engine block)
1x Intake Manifold (Evolution or DSM – specify)
1x Turbocharger (TD05H, TD05HR, TD06, or T25 depending on variant)
1x Exhaust Manifold (Cast iron)
1x Wiring Harness (if included – specify donor vehicle)
Injectors, ignition coils/distributor, alternator, starter, and ECU.