6.1 Hemi Engine for Sale | OEM Used 6.1L SRT8 Hemi V8 from 2005 to 2010 Dodge / Chrysler / Jeep SRT
$5,099.00
At a Glance
- Condition: OEM used, compression tested across all 8 cylinders
- Availability: In stock, multiple year ranges available 2005 to 2010
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- All 8 cylinders compression tested, results available before you pay
- Donor application documented (Charger SRT8, Magnum SRT8, Challenger SRT8, 300C SRT8, Jeep SRT8)
- Lifter tick / failure inspection (common modern Hemi issue)
- Cam and valve train condition inspected
- Spark plug thread integrity verified (16 plug threads, Hemi has 2 plugs per cylinder)
- Engine code verified (ESF block code for 6.1 SRT8)
- 100% fitment verified before every order ships
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
Description
About the 6.1 Hemi Engine
Discover the ultimate naturally-aspirated Hemi power with the 6.1 Hemi engine for sale. This 6.1 Hemi is the original SRT8 powerplant, packing 425 horsepower and 420 lb-ft of torque to deliver the performance that made the Charger SRT8, Magnum SRT8, Challenger SRT8, 300C SRT8, and Jeep Grand Cherokee SRT8 some of the most celebrated modern American muscle cars of the 2005 to 2010 era. Built with a robust cast iron block and lightweight aluminum heads, it is engineered for strength, durability, and the high-RPM operation needed to make 425 hp from 6.1 liters of displacement.
The 6.1 Hemi features a high-performance camshaft with aggressive lift and duration, larger intake and exhaust valves than the 5.7 Hemi, and a higher 10.3:1 compression ratio. Sequential multi-port fuel injection ensures precise fuel delivery, while the iconic Hemi spherical combustion chamber provides excellent flame propagation across the bore. Ideal for SRT8 restorers, modern muscle car enthusiasts, swap project builders, and insurance-totaled SRT8 repower applications, this engine offers a perfect blend of raw naturally-aspirated power and modern reliability.
Do not settle for ordinary, elevate your ride with the legendary 6.1 SRT8 Hemi engine. Available now for those who demand authentic Mopar SRT8 performance.
Key Features of the 6.1 Hemi Engine
- 425 horsepower at 6,200 RPM and 420 lb-ft of torque at 4,800 RPM, all naturally aspirated
- 10.3:1 high compression ratio for maximum naturally-aspirated power
- Aluminum cylinder heads with classic Hemi spherical combustion chambers for excellent flame propagation
- Cast iron block for strength and durability under high-RPM operation
- High-performance SRT8 camshaft with revised lift, duration, and lobe separation versus the 5.7 Hemi
- Sequential Multi-Port Fuel Injection (SMPI) for precise fuel delivery and emissions compliance
- OHV pushrod design with 16 valves (2 valves per cylinder), Mopar small block bellhousing pattern
- Dual spark plugs per cylinder (16 plugs total) for improved combustion, signature Hemi feature
- Compatible with Mopar 5-speed and 6-speed automatic transmissions (NAG1, 545RFE, 65RFE)
- Foundation for tuner builds: the 6.1 supports 500 to 600-plus hp with proper supporting modifications
- Excellent aftermarket support from Mopar Performance, Edelbrock, Holley, and SRT specialty shops
6.1 Hemi vs Other Modern Hemi Variants
| Option | Description |
|---|---|
| 5.7 Hemi (NA) | 345 hp / 390 hp variants. Standard truck and Charger / Challenger R/T engine. Most common Hemi. Lower-stress design. |
| 6.1 Hemi SRT8 | 425 hp at 6,200 rpm, 420 lb-ft. The original SRT8 engine sold on this page. 2005 to 2010 production. |
| 6.4 Hemi (392) | 470 to 485 hp depending on application. Replaced the 6.1 in 2011. Larger displacement, revised heads. |
| 6.2 Hellcat (Supercharged) | 707 to 717 hp depending on year. Supercharged. Different architecture, not a 6.1 successor. |
Signs You Need a Replacement 6.1 Hemi
- Lifter tick or rattle (a known modern Hemi issue, particularly on aged units)
- Loss of compression on one or more cylinders
- Hemi tick (different from lifter tick, related to exhaust manifold studs or rocker arm wear)
- Knock under load (rod or main bearing wear on high-mileage units)
- Excessive oil consumption beyond factory spec
- Coolant in oil or oil in coolant (head gasket failure)
- Spark plug ejection or thread damage (Mopar Hemi family is prone to plug thread issues on aged engines)
- Engine seized in donor SRT8
- SRT8 build project (custom RWD swap, restored Charger SRT8 wreck recovery)
Known 6.1 Hemi Issues We Inspect Before Shipping
- Lifter tick / failure: A well-documented modern Hemi issue, particularly on engines run with extended oil change intervals. We listen for lifter tick and inspect cam lobe condition.
- Multi-Displacement System (MDS) wear: Note: The 6.1 SRT8 Hemi did NOT include MDS (cylinder deactivation), unlike the 5.7 and 6.4. This is a benefit for SRT8 buyers, no MDS lifter wear concerns.
- Spark plug thread damage: The Mopar Hemi has 2 plugs per cylinder (16 total). Aged engines can develop thread damage during plug replacement. We inspect plug thread integrity.
- Exhaust manifold stud / bolt failure: Common on aged Hemi engines, often the source of a “Hemi tick” sound. We inspect manifold mounting integrity.
- Cooling system passages: Inspected for corrosion and contamination.
- Compression on all 8 cylinders, the leading indicator of overall internal condition
What Ships and What Does Not
| Item | Details |
|---|---|
| INCLUDED, Long Block | Block, crankshaft, rods, pistons, camshaft, lifters, both cylinder heads, valve train (rocker arms, pushrods), oil pan, valve covers, front timing cover, harmonic balancer, intake manifold (typical). |
| NOT INCLUDED | Throttle body, ECU and harness (sold separately), 16 spark plugs (sold separately), alternator, starter, A/C compressor, power steering pump, flexplate (auto) or flywheel (manual), motor mounts, exhaust manifolds. |
| Fluids | Drained before shipping. Refill with 5W-20 or 5W-30 motor oil per Mopar SRT spec. |
| Core Note | No core charge. You are not required to return your old engine. |
Vehicle Compatibility
The 6.1 SRT8 Hemi was a direct fit in the following vehicles:
| Vehicle | Compatibility |
|---|---|
| Dodge Charger SRT8 | 2006 to 2010 |
| Dodge Magnum SRT8 | 2006 to 2008 |
| Dodge Challenger SRT8 | 2008 to 2010 |
| Chrysler 300C SRT8 | 2005 to 2010 |
| Jeep Grand Cherokee SRT8 (WK) | 2006 to 2010 |
| Chrysler 300 SRT Design (limited markets) | Limited applications |
NOT compatible without significant work with: 5.7 Hemi applications (Charger R/T, Challenger R/T, Ram 1500, etc., uses different cam and lower-output tune), 6.4 / 392 Hemi (post-2011 SRT8 vehicles), Hellcat 6.2 supercharged applications, or non-LX / LC / WK platform vehicles.
Common 6.1 swap applications: Older Mopar muscle car restorations (Challenger, Dart, Coronet) for modern Hemi swaps, custom builds, and insurance-totaled SRT8 wreck recovery for transferring the engine to a similar chassis. Mopar Performance and aftermarket suppliers offer swap kits.
Transmission compatibility: Mopar NAG1 (W5A580) 5-speed automatic, the standard SRT8 transmission | 545RFE 5-speed automatic, some applications | 65RFE 6-speed automatic, late 6.1 applications | TR-6060 6-speed manual, Challenger SRT8 manual variants.
Inspection Workflow
Every used 6.1 Hemi we ship goes through this process:
- Compression test across all 8 cylinders, pressure per cylinder recorded
- Lifter tick / cam lobe wear inspection (the most common modern Hemi failure mode)
- Spark plug thread integrity verified (all 16 plug holes, Hemi has 2 plugs per cylinder)
- Exhaust manifold stud / bolt integrity inspected (common Hemi tick source)
- Engine code verified (ESF block code for 6.1 SRT8)
- Cooling system passages inspected for corrosion
- Donor application photographed and documented (Charger SRT8, Magnum SRT8, Challenger SRT8, 300C SRT8, Jeep SRT8)
- Approximate mileage documented when verifiable
Where donor mileage is verified, it is shared. Where mileage cannot be confirmed, we disclose this openly before payment.
Why Buy From Part Nests
- All 8 cylinders compression tested, results before you pay
- Lifter tick / cam wear inspection (the most common modern Hemi issue)
- Spark plug thread integrity verified on all 16 plug holes
- Exhaust manifold stud condition inspected (common Hemi tick source)
- Engine code (ESF) verified for 6.1 SRT8 confirmation
- Donor application documented (Charger SRT8, Magnum SRT8, Challenger SRT8, 300C SRT8, Jeep SRT8)
- Free freight pallet to all 50 states, no hidden fees
- No core charge, keep your old engine
- 15 day replacement warranty on internal defects
- Call (240) 306-7051 to confirm donor SRT8 application, ESF block code verification, and lifter / spark plug thread inspection results before ordering
15 Day Replacement Warranty
Every used 6.1 Hemi engine purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the engine arrives
- Compression failures on any of the 8 cylinders beyond what was disclosed
- Lifter, cam, or bearing failures within 15 days from installation
- Spark plug thread defects not disclosed at shipping
- Incorrect engine code shipped (5.7 vs 6.1 vs 6.4 mismatch) due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from spark plug thread stripping during plug service (use proper torque, anti-seize sparingly, and a thread chaser before installation)
- Damage from incorrect ECU calibration or aggressive tuning beyond SRT8 spec
- Damage from operating with extended oil change intervals (5,000 mile maximum recommended)
- External components (throttle body, ECU, harness, 16 spark plugs, alternator, starter, A/C, P/S, exhaust manifolds, flexplate or flywheel) unless itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (855) 634-4447.
- All 8 Cylinders Tested: Compression results documented before payment
- Lifter and Cam Inspection: Most common modern Hemi failure mode assessed
- 16 Spark Plug Thread Integrity: Hemi 2-plug-per-cylinder thread holes verified
- Exhaust Manifold Stud Integrity: Common Hemi tick source inspected
- ESF Block Code Verified: 6.1 SRT8 confirmed (not 5.7 or 6.4)
- 15 Day Replacement Cover: Internal defects protected from delivery onward
Additional information
| displacement | 6.1 liters (370 cubic inches) |
|---|---|
| configuration | V8, OHV pushrod, 16 valves |
| bore-x-stroke | 4.055 in x 3.58 in |
| compression-ratio | 10.3:1 |
| aspiration | Naturally Aspirated |
| block-material | Cast Iron |
| cylinder-head-material | Aluminum |
Displacement and tune. The 5.7 Hemi (345 hp / 390 hp variants) is the standard truck and Charger / Challenger R/T engine, the most common Hemi, lower-stress design. The 6.1 Hemi SRT8 (425 hp at 6,200 rpm, sold on this page) is the original SRT8 engine produced from 2005 to 2010. The 6.4 Hemi (392, 470 to 485 hp) replaced the 6.1 in 2011 with larger displacement and revised heads. The 6.2 Hellcat (707 hp / 717 hp supercharged) is a completely different architecture and not a 6.1 successor. The 6.1 is naturally aspirated, the Hellcat is supercharged.
No, this is an advantage. The 6.1 SRT8 Hemi did NOT include Multi-Displacement System (cylinder deactivation), unlike the 5.7 Hemi and the later 6.4. MDS uses special hydraulic lifters that can deactivate, and those MDS lifters are a known wear point on the 5.7 Hemi. The 6.1 uses standard (non-MDS) lifters, which removes the MDS-related failure mode entirely. This is one reason the 6.1 has a reputation for solid reliability among modern Hemi variants when properly maintained.
Two plugs per cylinder for improved combustion. The modern Mopar Hemi (5.7, 6.1, 6.4) uses 2 spark plugs per cylinder (16 plugs total in a V8). The dual-plug design promotes more complete flame propagation across the wide Hemi combustion chamber, improving power, fuel economy, and emissions compliance. The downside is double the plug count, double the service cost, and double the opportunity for plug thread issues on aged engines. We inspect all 16 plug holes on every 6.1 before shipping.
An audible ticking sound from the engine that can come from one of two sources. The first is lifter tick (the well-known modern Hemi issue, related to lifter wear, particularly on engines run with extended oil change intervals). The second is exhaust manifold tick (loose or broken manifold studs that allow the manifold to chatter against the head). We inspect for both on every 6.1 before shipping. The exhaust manifold tick is generally easier to address than lifter wear; both are inspectable issues we disclose openly.
The 6.1 SRT8 engine code stamped on the block. ESF identifies the 6.1L SRT8 Hemi specifically. Verifying ESF on every shipped engine ensures the buyer receives the 6.1 SRT8 rather than a 5.7 or 6.4 Hemi by mistake. Confirm with the seller before payment if exact code verification matters to you, this is standard practice on every order we ship.
Yes with appropriate hardware. The 6.1 has been swapped into classic Challenger, Dart, Coronet, and other Mopar muscle car restorations using available aftermarket swap kits (motor mounts, headers, accessory drive brackets, ECU controllers). The result is a classic Mopar chassis with modern naturally-aspirated SRT8 power. Plan for the complete ECU / harness setup, modern fuel system (electronic fuel pump, return line, fuel rail), and matching transmission (the NAG1 5-speed automatic is the typical pairing).
Yes with proper supporting modifications. The 6.1 SRT8 has a stout cast iron block and forged crankshaft that handles moderate forced induction or naturally aspirated cam / heads / intake builds well. Streetable bolt-on builds (cold air intake, headers, full exhaust, custom tune) typically reach 460 to 490 wheel hp. Aggressive cam / heads / intake builds can reach 550 to 600 hp naturally aspirated. Supercharger kits from Magnuson, Procharger, and others bring 600 to 800 wheel hp. The 6.1 internals can handle moderate forced induction; forged rotating assembly is recommended for sustained high boost.
No. There is no core return required.
2 reviews for 6.1 Hemi Engine for Sale | OEM Used 6.1L SRT8 Hemi V8 from 2005 to 2010 Dodge / Chrysler / Jeep SRT
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Reggie A. –
Got a 6.1 Hemi for a 2007 Charger SRT8 replacement after the original developed lifter tick that diagnostic chased to cam lobe wear. Engine code ESF confirmed (not 5.7 or 6.4), all 8 cylinders compression tested, all 16 spark plug threads verified clean, exhaust manifold stud integrity inspected. Drop-in replacement with the 5.7 to 6.1 mistake avoided thanks to upfront code verification.
Tasha B. –
Sourced a 6.1 SRT8 for a 2009 Jeep Grand Cherokee SRT8 (WK platform). Donor application documented from a similar Jeep SRT8 donor, ESF block code verified, lifter tick inspection clean. Honest pre-purchase information about the 6.1’s no-MDS advantage over the 5.7. Foundation for keeping the Jeep SRT8 on the road.