The Chrysler ENC is a 2,736 cc, 60‑degree V6 petrol engine produced between 2002 and 2006. It features a single overhead camshaft (SOHC) design with four valves per cylinder and sequential fuel injection, delivering smooth, adequate power for mid-size sedans. A cast-iron block and aluminum heads provide a balance of durability and weight.
Fitted to models such as the Chrysler Sebring, Dodge Stratus, and Chrysler Cirrus, the ENC engine was engineered for quiet, refined operation and everyday commuting. Emissions compliance was achieved through electronic throttle control and catalytic converters, meeting U.S. EPA Tier 2 Bin 5 standards for its production period.
One documented engineering concern is potential oil sludge formation under severe service conditions, as noted in Chrysler Service Bulletin 09‑007‑05. This was linked to extended oil change intervals and short-trip driving. Chrysler reinforced the importance of adhering to specified oil types and change intervals to mitigate this risk.

Chrysler
Production years 2002–2006 meet U.S. EPA Tier 2 Bin 5 standards (EPA Certificate of Conformity #A-9012).
The Chrysler ENC is a 2,736 cc 60-degree V6 petrol engine engineered for mid-size sedans (2002-2006). It combines SOHC architecture with sequential fuel injection to deliver smooth, linear power for daily driving. Designed to meet U.S. EPA Tier 2 Bin 5 standards, it prioritizes refinement and ease of maintenance over high performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,736 cc | |
| Fuel type | Petrol | |
| Configuration | 60° V6, SOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 86.0 mm × 78.0 mm | |
| Power output | 200 hp (149 kW) | |
| Torque | 190 lb-ft (258 Nm) @ 4,000 rpm | |
| Fuel system | Sequential multi-port fuel injection (SFI) | |
| Emissions standard | U.S. EPA Tier 2 Bin 5 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven (maintenance-free design) | |
| Oil type | SAE 5W-30 (MS-6395 specification) | |
| Dry weight | 178 kg |
The SOHC, 24-valve design provides smooth, quiet operation ideal for commuting but requires strict adherence to 5W-30 oil (MS-6395) and regular 5,000-mile change intervals to prevent sludge buildup, particularly in vehicles used for short trips. The timing chain is designed to be maintenance-free, but using incorrect oil can accelerate wear. Early oil sludge concerns, documented in Service Bulletin 09-007-05, were primarily linked to owner maintenance practices rather than inherent design flaws. Replacing the PCV valve at recommended intervals is critical for maintaining proper crankcase pressure.
Oil Specs: Requires SAE 5W-30 meeting Chrysler MS-6395 specification (Chrysler Service Manual 09-008-05).
Emissions: Tier 2 Bin 5 certification applies to all 2002-2006 ENC engines (EPA Certificate of Conformity #A-9012).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model years; no factory high-output variant exists.
Chrysler Technical Service Manuals: Docs 09-008-05, 09-009-05, 09-007-05
EPA Certificate of Conformity Database (A-9012)
SAE International: J1349 Engine Power Certification Standards
The Chrysler ENC was used across Chrysler's JA platform with transverse mounting. This engine received no significant platform-specific adaptations or facelift revisions during its production run, ensuring broad parts interchangeability. All applications are documented in OEM technical bulletins.
Locate the engine code 'ENC' cast into the front of the left-side cylinder head, near the timing cover (Chrysler Service Manual 09-008-05). The 8th digit of the VIN is 'R' for vehicles equipped with the 2.7L V6 engine. Visually, the engine features a black plastic intake manifold with '2.7L' embossed on top. Critical differentiation from the 2.4L I4 (EDZ): The ENC is a V6 configuration with a visibly wider angle between cylinder banks. Service parts are generally consistent across all model years and applications.
The ENC's primary reliability consideration is potential oil sludge formation under severe service conditions, with elevated incidence noted in vehicles subjected to frequent short trips and infrequent oil changes. Chrysler internal data prompted a service bulletin reinforcing maintenance procedures, while U.S. NHTSA data shows no significant safety recalls linked to the engine. Adherence to the MS-6395 oil specification and recommended change intervals is the most critical factor for long-term health.
Analysis derived from Chrysler technical bulletins (2002-2006) and U.S. NHTSA recall data (2002-2023). Repair procedures should follow manufacturer guidelines.
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