Gen III 392CI Hemi Stroker 650HP Crate Engine, Gen III 345CI Hemi 450HP Crate Engine
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Gen III 392CI Hemi Stroker 650HP Crate Engine, Gen III 345CI Hemi 450HP Crate Engine

New In stock · Ships from Ohio
$19,295.00 USD · free U.S. shipping over $1500

Unleash formidable power with our Gen III 392CI Hemi Stroker 650HP or Gen III 345CI Hemi 450HP Crate Engine! Designed for peak performance, these new engines ship fast directly from Spoon Parts USA, ensuring you get back on the road or track quickly. Don’t wait – order your Hemi crate engine today!

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Product details

Welcome to Spoon Parts USA, your premier destination for high-performance automotive components. We’re thrilled to present our cutting-edge Gen III Hemi Crate Engine options: the 392CI Hemi Stroker with a colossal 650HP and the robust 345CI Hemi with 450HP. These engines represent the pinnacle of modern Hemi engineering, offering unparalleled power, reliability, and the thrilling driving experience you’ve been seeking.

Whether you’re embarking on a high-performance build, refreshing a classic, or simply upgrading your current setup, these Hemi crate engines deliver. We understand the passion behind every build, and that’s why we meticulously select parts that meet the highest standards of quality and performance. When you buy from Spoon Parts USA, you’re not just purchasing an engine; you’re investing in a legacy of power.

Overview: The Power of Gen III Hemi

The Gen III Hemi platform has revolutionized modern muscle, blending classic V8 rumble with advanced technology. These crate engines are engineered to provide bolt-in power solutions, significantly reducing the complexity often associated with engine swaps. Our offerings include two distinct power levels to suit various project requirements and budgets, ensuring there’s a perfect Hemi for your needs. We pride ourselves on being a trusted source for enthusiasts looking to find their ideal Mopar 392 Crate Engine 6.4L SRT Gen III HEMI V8 – 68303090AC | All Mopar Parts and more.

Gen III 392CI Hemi Stroker 650HP

For those who demand uncompromising power, the 392CI Hemi Stroker is your answer. This beast is meticulously crafted to deliver an astonishing 650 horsepower, making it suitable for serious track use, drag racing, or simply dominating the streets. The stroker design enhances displacement, translating directly into more torque and horsepower across the entire RPM range. This engine is built with high-quality internal components designed to withstand extreme conditions, ensuring longevity alongside its staggering power output. If you’re looking for the ultimate performance upgrade for your 6.4 Hemi Engine, this is it.

Gen III 345CI Hemi 450HP

The 345CI Hemi 450HP Crate Engine offers a fantastic balance of raw power and everyday drivability. Producing a stout 450 horsepower, this engine is perfect for street performance builds, hot rods, or direct replacements where a significant power bump is desired without venturing into extreme high-output territory. It provides responsive throttle, reliable performance, and that unmistakable Hemi growl. It’s an excellent choice for a wide array of applications, providing a robust foundation for many builds.

Key Features and Specifications

  • Engine Type: Gen III Hemi (392CI Stroker or 345CI)
  • Horsepower: 650HP (392CI Stroker), 450HP (345CI)
  • Condition: Brand New units
  • Fuel Type: Gasoline (Specific octane requirements may vary; consult manual)
  • Warranty: Manufacturer’s warranty applies (details available upon request)
  • Application: Ideal for custom builds, restorations, and performance upgrades
  • Advanced Design: Incorporates modern Hemi technology for efficiency and power
  • Durable Construction: Built with high-quality components for longevity and performance

Each engine benefits from decades of engineering expertise, ensuring you receive a product that is not only powerful but also reliable. These units are ready for installation, designed to integrate seamlessly into your project. For optimal performance, we recommend professional installation and tuning.

Applications and Fitment

Our Gen III Hemi crate engines are versatile powerhouses. They are frequently used in:

  • Classic Mopar muscle car restorations and restomods
  • Custom hot rod and kit car builds
  • Performance upgrades for various vehicles (with appropriate modifications)
  • Project trucks and SUVs seeking significant power increases

While these are universal crate engines, fitment into specific vehicles will require proper motor mounts, accessory drives, wiring harnesses, and potentially transmission considerations. We encourage you to search by vehicle or consult with our experts to ensure compatibility with your specific application. Spoon Parts USA is here to help guide you through the selection process!

Installation Notes and Recommendations

Installing a Hemi crate engine is a significant undertaking that requires expert knowledge. We highly recommend:

  • Professional Installation: To ensure proper function, longevity, and to uphold warranty terms.
  • Appropriate Supporting Systems: Ensure your cooling system, fuel system (including pump and injectors), and exhaust system are upgraded to handle the increased power.
  • Engine Management: A compatible stand-alone ECU or appropriate vehicle harness is crucial for optimal performance and tuning.
  • Transmission Pairing: Consider a transmission capable of handling the substantial power output. We offer a wide range of options, including excellent choices for a 6.4 hemi engine and transmission combination.
  • Initial Break-In: Follow manufacturer guidelines for initial engine break-in to maximize engine life and performance.

Quality Assurance and Warranty

At Spoon Parts USA, we only source and sell products that meet our rigorous standards for quality and performance. These Gen III Hemi Crate Engines are brand new, coming directly from the manufacturer with their full factory warranty. This ensures peace of mind with your significant investment. All warranty claims are handled directly through the manufacturer, and we are happy to assist in facilitating communication if needed. Our commitment is to provide you with reliable, high-quality components that perform as expected.

Why Buy From Spoon Parts USA?

When you choose Spoon Parts USA, you’re choosing a partner dedicated to your performance goals. Our advantages include:

  • Expertise: Our team consists of automotive enthusiasts who understand the products we sell.
  • Fast Shipping: We understand that time is critical. Our engines ship fast so you can get your project moving.
  • Competitive Pricing: We strive to offer the best value on premium automotive parts.
  • Customer Support: We are here to answer your questions and provide guidance before and after your purchase.
  • Genuine Products: We only sell authentic, high-quality new parts.

Don’t compromise on power, reliability, or customer service. Choose Spoon Parts USA for your next Hemi crate engine purchase. Our inventory is constantly updated, and these powerful engines sell quickly!

Frequently Asked Questions (FAQ)

Q: What is a stroker engine?

A: A stroker engine increases the engine’s displacement by using a crankshaft with a longer stroke and sometimes custom connecting rods and pistons. This results in a higher cubic inch (CI) displacement and typically a significant increase in both horsepower and torque compared to a standard engine of the same block.

Q: Is tuning required after installing this crate engine?

A: Yes, absolutely. Proper tuning is crucial for any high-performance crate engine. It ensures the engine performs optimally, safely, and efficiently. An aftermarket ECU or a re-tuned factory computer is almost always necessary to correctly manage fuel, ignition, and other parameters for the new engine’s specifications.

Q: What’s the difference between the 392CI and 345CI Hemi options?

A: The primary difference lies in their displacement and power output. The 392CI is a stroker version, offering a higher displacement (392 cubic inches) and a significantly higher horsepower rating of 650HP. The 345CI is a standard displacement engine delivering 450HP. The 392CI is built for maximum performance, while the 345CI provides strong, reliable power for a broader range of applications.

Q: Does the engine come with accessories like an alternator or power steering pump?

A: Crate engines typically come as long blocks, which means they include the block, rotating assembly, cylinder heads, and often an oil pan and valve covers. Accessories like alternators, power steering pumps, AC compressors, and intake manifolds are usually sold separately or as part of an accessory drive kit. Please confirm the exact contents of your specific engine package with Spoon Parts USA before purchasing.

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