SRT8 Engine Price range: $4,500.00 through $12,000.00Select options
SRT8 Engine
The SRT8 engine typically refers to high-performance 6.1L and 6.4L HEMI V8 engines engineered for maximum power and aggressive driving dynamics. Built with a cast-iron block (6.1L) or reinforced design (6.4L), aluminum cylinder heads, pushrod valvetrain, and multi-displacement system (in select variants), these engines deliver exceptional horsepower and torque. Output ranges from 425 to 485+ horsepower, depending on the model. Developed by Chrysler under the Street & Racing Technology (SRT) division, the SRT8 engine is designed for high-speed performance, track use, and muscle car enthusiasts.
In Stock
$4,500.00 – $12,000.00Price range: $4,500.00 through $12,000.00
The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.
SKU: DOD-SRT8
Category: Used Engine
Tags: 6.1 HEMI engine, 6.4 HEMI engine, Challenger SRT8 motor, Charger SRT8 engine, HEMI V8 performance engine, Jeep SRT8 engine, muscle car engine, SRT replacement engine, SRT8 engine, used SRT8 engine
Brand: Dodge
Additional Information
| Brand | Dodge |
|---|---|
| Conditions | Remanufactured, Used |
| Miles | 70000-130000 |
| Year Compatibility | 2005-2025 |
| Verified | Tried & Tested |
| Warranty | Up to 3 Months |
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Specifications
The SRT8 engine 6.4-liter (392 cubic-inch) HEMI V8 delivers an impressive blend of raw power and refined engineering, producing 470 horsepower and 470 lb.-ft. of torque (465 lb.-ft. in select Jeep applications). Built with a 90-degree V8 configuration and a high 10.9:1 compression ratio, this engine features a pushrod-operated overhead valve design that enhances durability and performance. Its Fuel Saver technology adds efficiency by deactivating cylinders under light loads, making it as practical as it is powerful.
With a bore and stroke of 4.09 x 3.72 inches, a redline of 6,400 rpm, and a requirement for premium 91-octane fuel, the 6.4L HEMI stands as a significant upgrade over the earlier 6.1-liter version, which produced 425 horsepower and 420 lb.-ft. of torque. This evolution highlights improved output, responsiveness, and overall driving excitement, making the 6.4L HEMI a standout choice for high-performance enthusiasts.
Engine Variants
6.1L HEMI V8 (First Gen SRT8)
is a naturally aspirated 6.1-liter V8 engine producing 425 horsepower and 420 lb-ft. of torque. It features a forged crankshaft, high-flow cylinder heads, a 10.3:1 compression ratio, and a pushrod OHV design. Known for its strong internal durability and high-rev capability, it helped establish the early SRT8 performance identity.
6.4L HEMI V8 (392)
is a 6.4-liter V8 engine delivering approximately 470–485 horsepower and 470–485 lb-ft. of torque depending on the application. It comes with a 10.9:1 compression ratio, improved airflow cylinder heads, Fuel Saver cylinder deactivation technology, and a pushrod OHV layout. This engine offers stronger acceleration, better efficiency, and a higher redline, making it a significant performance upgrade over the 6.1L.
Frequently Asked Questions
What is an SRT8 engine?
It refers to high-performance HEMI V8 engines (6.1L and 6.4L) used in SRT8 models.
What vehicles use SRT8 engines?
SRT8 engines are found in Dodge Charger, Challenger, Chrysler 300, and Jeep Grand Cherokee SRT8 models.
How much horsepower does an SRT8 engine produce?
Depending on the version, it produces between 425 and 485+ horsepower.
Is the SRT8 engine reliable?
Yes, it is reliable when properly maintained, though it is built for high-performance use.
Can the SRT8 engine be modified for more power?
Yes, it supports upgrades like superchargers, camshafts, exhaust systems, and ECU tuning.
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