The Chrysler 392 HEMI is a 6,407 cc, naturally aspirated V8 petrol engine produced between 2011 and 2023. It features a pushrod valvetrain with two valves per cylinder and variable valve timing (VVT), delivering substantial power outputs for performance applications. In standard form it produced 347–350 kW (470–485 PS) and 637–644 Nm of torque, prioritising high-revving performance and throttle response.
Fitted primarily to the Dodge Challenger, Charger, and Jeep Grand Cherokee SRT models, the 392 HEMI was engineered for enthusiasts seeking raw American muscle and track-capable performance. Emissions compliance for its era was managed through precise electronic fuel injection, VVT, and catalytic converters, meeting the prevailing US Tier 2 Bin 5 and Euro 5 standards depending on market.
One documented concern is premature failure of the oil cooler lines, which can lead to oil leaks and potential engine damage if not addressed. This issue, highlighted in Chrysler Technical Service Bulletin TSB‑18‑001‑15, is often linked to material fatigue in the original hose design under high-temperature operation. The 392 HEMI was phased out after 2023 in favour of electrified powertrains.
Production years 2011–2023 meet US Tier 2 Bin 5 standards for North America; European models meet Euro 5 standards (EU Regulation (EC) No 715/2007).
The Chrysler 392 HEMI is a 6,407 cc V8 petrol engine engineered for performance sedans and SUVs (2011-2023). It combines a robust pushrod valvetrain with variable valve timing to deliver high horsepower and strong low-end torque. Designed to meet US Tier 2 Bin 5 and Euro 5 emissions standards, it balances brute force with modern emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 6,407 cc | |
| Fuel type | Petrol | |
| Configuration | V8, OHV, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 103.9 mm × 94.6 mm | |
| Power output | 347–350 kW (470–485 PS) | |
| Torque | 637–644 Nm @ 4,200 rpm | |
| Fuel system | Sequential multi-port fuel injection | |
| Emissions standard | US Tier 2 Bin 5 / Euro 5 | |
| Compression ratio | 10.9:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven (maintenance-free) | |
| Oil type | SAE 5W‑20 (synthetic) | |
| Dry weight | 235 kg |
The naturally aspirated V8 provides exhilarating throttle response and a signature HEMI exhaust note but requires premium unleaded fuel (minimum 91 octane) to prevent detonation and maintain power output. The variable valve timing system enhances low-end torque and emissions compliance but relies on clean, high-quality 5W-20 synthetic oil for optimal operation. Premature oil cooler line failure, as noted in TSB 18-001-15, is a known issue; inspection and proactive replacement are recommended for high-mileage or track-used vehicles.
Oil Specs: Requires SAE 5W-20 full synthetic oil meeting Chrysler MS-6395 specification (Chrysler Owner's Manual 2022).
Emissions: US Tier 2 Bin 5 certification applies to North American models (EPA). Euro 5 certification applies to European models (EU Regulation (EC) No 715/2007).
Power Ratings: Measured under SAE J1349 standards. Output varies slightly by model year and application (Chrysler TIS Doc. ENG-11-01).
Chrysler Technical Information System (TIS): Docs ENG-11-01, FUEL-11-03, TIM-11-05
Chrysler Service Bulletin TSB-18-001-15
EU Regulation (EC) No 715/2007
SAE International: J1349 Engine Power Certification Standards
The Chrysler 392 HEMI was used across Dodge and Jeep performance platforms with longitudinal mounting. This engine received minor platform-specific adaptations for intake and exhaust routing. All adaptations are documented in OEM technical bulletins.
Locate the engine code cast into the left side of the engine block, just above the oil pan rail (Chrysler TIS ENG-11-01). The casting will read "392 HEMI". Visually, it is identifiable by its large displacement, prominent "392 HEMI" valve covers, and dual-snorkel air intake. Critical differentiation from the 6.2L Hellcat: The 392 HEMI lacks a supercharger and has a simpler intake manifold. Service parts for the oil cooler system require verification against service bulletin TSB-18-001-15 for the correct hose assembly.
The 392 HEMI's primary reliability risk is failure of the oil cooler lines, with elevated incidence in high-mileage or performance-driven examples. Chrysler service data indicates a significant number of failures occurring beyond 80,000 km, while owner reports frequently cite lifter tick as a secondary concern. Neglecting the oil cooler line inspection and using incorrect oil can lead to expensive engine damage.
Analysis derived from Chrysler technical bulletins (2011-2023) and owner workshop manual data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about CHRYSLER 392-HEMI.
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