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2.0L 16v - 4G63 6-bolt
Manufacturers
2.0L 16v - 4G63 6-bolt
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4G63 2.3L forged pistons (4G64 crankshaft, 6-bolt) bores 85 to 86 mm, RV 8.5:1 to 8.8:1, axle 21 mm. Wiseco, JE, Manley ranges. Compatible with Eclipse GS-T/GSX, Talon TSi, Laser RS Turbo, Galant VR-4.
Characteristics of the forged pistons offered by NSB Concept for conversion 2.3L (4G63 6-bolt + crankshaft 4G64):
| ReferencePiston | Bore (mm) | VR | Axis (mm) | Axis Height (mm) | Range | Aluminum | Treatment | Forging | Dome (cc) | Weight (g) | rings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WK571M85 | 85 | 8.8:1 | 21 | 28.7 | Wiseco | 2618 | Skirt | N/A | -21 | N/A | 8500XX |
| JE-270665 | 85.5 | 8.5:1 | 21 | 28.7 | Round | 2618 | N/A | Round | -22 | 275 | N/A |
| 607005C-4 | 85.5 | 8.5:1 | N/A | 28.7 | Manley | 4032 | Skirt | N/A | -22 | 300 | N/A |
| 607005CE-4 | 85.5 | 8.5:1 | N/A | 28.7 | Manley HD | 2618 | Skirt | N/A | -22 | 300 | N/A |
| WK571M855 | 85.5 | 8.8:1 | 21 | 28.7 | Wiseco | 2618 | Skirt | N/A | -21 | N/A | 8550XX |
| JE-270668 | 86 | 8.5:1 | 21 | 28.7 | Round | 2618 | N/A | Round | -22 | 280 | N/A |
| WK571M86 | 86 | 8.8:1 | 21 | 28.7 | Wiseco | 2618 | Skirt | N/A | -21 | N/A | 8600XX |
Engine compatibility:
2.0L 16v 4G63 6-bolt (DSM base), conversion2.3Lwith crankshaft 4G64.
| Brand | Model | Chassis | Engine Code | Power (hp) | Years |
|---|---|---|---|---|---|
| Eagle | Talon TSi / TSi AWD | DSM 1G | 4G63T (6-bolt) | 190-195 | 1990-1992 |
| Mitsubishi | Eclipse GS-T | DSM 1G | 4G63T (6-bolt) | 190 | 1990-1992 |
| Mitsubishi | Eclipse GSX | DSM 1G | 4G63T (6-bolt) | 195 | 1990-1992 |
| Mitsubishi | Galant VR-4 | E38A/E39A | 4G63T (6-bolt) | 190-195 | 1991-1992 |
| Plymouth | Laser RS Turbo | DSM 1G | 4G63T (6-bolt) | 190 | 1990-1992 |
Piston Manufacturer Reference (OEM):
Original Mitsubishi references for 4G63T pistons
piston & pin
standard (grades A/B/C) and official surcharges:
| Reference | Size | Details | Applications (vehicles in the table) |
|---|---|---|---|
| MD188108 | STD (Grade A) | PISTON & PIN ASSY | Eclipse GS-T/GSX 90-92, Talon TSi 90-92, Laser RS Turbo 90-92, Galant VR-4 91-92 |
| MD188109 | STD (Grade B) | PISTON & PIN ASSY | Same |
| MD188110 | STD (Grade C) | PISTON & PIN ASSY | Same |
| MD194513 | +0.25mm | PISTON & PIN ASSY | Same |
| MD194514 | +0.50mm | PISTON & PIN ASSY | Same |
| MD194515 | +0.75mm | PISTON & PIN ASSY | Same |
| MD194516 | +1.00mm | PISTON & PIN ASSY | Idem |
Attention:
before any assembly, please check the integrity and conformity of each component of the piston kit as well as the conformity of the assembly in the engine; any possible warranty is strictly limited to the parts of the piston kit only.
