The Dodge 6G72 is a 3,497 cc, 60° V6 engine produced between 1987 and 2004. Developed by Mitsubishi Motors as part of the 6G7 series and used under licensing agreements, it features a cast — iron block with aluminum heads, SOHC 24 — valve configuration, and sequential multi — port fuel injection. It delivered 160–190 kW (215–255 PS) depending on application and tuning, with torque outputs from 290–315 Nm.
Fitted to key platforms including the Dodge Stealth, Daytona, and sele…
Production years 1987–1994 meet U.S. EPA Tier 1 standards; 1995–2004 models comply with OBD-II and enhanced evaporative controls (EPA Certification #EPAPDF0523).
The Dodge 6G72 is a 3,497 cc 60° V6 engineered for performance and touring applications (1987–2004). It combines SOHC 24-valve architecture with sequential multi-port fuel injection to deliver smooth power delivery and mid-range torque. Designed to meet U.S. EPA Tier 1 and OBD-II requirements, it balances drivability with emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,497 cc | |
Fuel type | Gasoline | |
Configuration | 60° V6, SOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 100.0 mm | |
Power output | 160–190 kW (215–255 PS) | |
Torque | 290–315 Nm @ 3,750 rpm | |
Fuel system | Sequential multi-port fuel injection | |
Emissions standard | U.S. EPA Tier 1 (OBD-II from 1996) | |
Compression ratio | 9.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | None (naturally aspirated) | |
Timing system | Timing belt (double-row, interference design) | |
Oil type | SAE 10W-30 or 5W-30 (API SL/SM) | |
Dry weight | 185 kg |
The Dodge 6G72 was used across Dodge's Stealth, Daytona, and Monaco platforms with both transverse and longitudinal mounting. This engine received platform-specific adaptations-intake manifold tuning in the Stealth and simplified emissions controls in fleet-spec Monaco units-and from 1996 the OBD-II compliance update introduced revised ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 6G72's primary reliability risk is timing belt failure due to deferred maintenance, with elevated incidence in high-mileage fleet vehicles. Internal Mitsubishi field reports from 1998 indicated over 30% of pre-1995 engines suffered belt-related damage beyond 120,000 km, while NHTSA data links timing failures to neglect in police and taxi fleets. Infrequent oil changes and sustained engine load increase cam and belt wear, making service interval adherence critical.
Analysis derived from Dodge technical bulletins (1990-2000) and NHTSA field reports (1995-2005). Repair procedures should follow manufacturer guidelines.
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The 6G72 is fundamentally robust but requires strict maintenance. Early models (1987–1994) are prone to camshaft wear if oil changes are delayed. The interference timing design demands timely belt replacement every 90,000–105,000 km. With proper care—quality oil, coolant, and belt service—many examples exceed 200,000 km reliably.
Key issues include timing belt failure (due to interference design), camshaft wear in pre-1995 units, intake manifold coolant leaks, and EGR valve clogging. These are documented in Dodge and Mitsubishi service bulletins. Regular maintenance significantly reduces risk of major failures.
The 6G72 was used in the Dodge Stealth (1991–1996), Daytona (1987–1993), Monaco (1990–1992), and Grand Caravan (1994–2000). It was also used in Mitsubishi 3000GT and Hyundai models under licensing. Applications range from sport coupes to full-size sedans and minivans.
Yes, the 6G72 responds well to modifications. Intake/exhaust upgrades, cam swaps, and ECU tuning can yield 20–40 kW gains. Forced induction kits exist but require significant supporting mods. Stock internals are durable, but head gasket integrity should be verified before high-boost use.
Moderate for a V6. In the Dodge Stealth R/T, EPA ratings are ~15 mpg (city) and ~22 mpg (highway) (~19 L/100km, ~13 L/100km). Real-world driving typically yields 17–20 mpg (14–12 L/100km). Fuel quality and driving style significantly affect consumption.
Yes. The 6G72 uses an interference valvetrain design. If the timing belt fails or jumps, pistons will contact open valves, causing severe internal damage. Immediate attention to belt condition and replacement intervals is essential to prevent costly engine repairs.
Use SAE 10W-30 or 5W-30 engine oil meeting API SL or SM specifications. Change oil every 9,000–12,000 km to protect camshafts and maintain lubrication. High-quality synthetic oil is recommended for high-load or high-mileage applications.
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