New Pair 5.7L Hemi Cylinder Heads for 2003-2008 Models

Revitalize your Hemi engine’s performance with this brand-new pair of cylinder heads designed specifically for Dodge, Chrysler, and Jeep vehicles from 2003 to 2008. Engineered to deliver superior performance, these cylinder heads are built to meet the demands of high-powered engines, offering enhanced durability and reliability. Whether you’re restoring your vehicle or seeking an upgrade, these Hemi heads provide the quality and precision you need. A core return is required for this purchase.

Top-Tier Performance and Durability

These Hemi cylinder heads fix the #1 issue plaguing Hemi engines—the valve seat issue. The heads come equipped with hardened valve seats, providing extreme durability and longevity, ensuring your engine performs optimally under even the most challenging conditions. With the hardened valve seats, you get better resistance against wear, heat, and cracking, significantly extending the life of your engine.

The Hemi engine is known for its powerful combustion and high output, and this pair of cylinder heads is built to harness that power, ensuring smooth combustion and efficient airflow. With precision-engineered ports and valves, these heads provide optimized fuel and air delivery, resulting in improved engine efficiency and enhanced performance.

Perfect Fit for 2003-2008 Hemi Engines

This pair of Hemi cylinder heads is a perfect fit for a range of Dodge, Chrysler, and Jeep models from 2003 to 2008. These heads have been designed to meet or exceed OEM specifications, ensuring easy installation without any modifications. Whether you’re working on a restoration or simply replacing worn-out heads, these cylinder heads will fit right in, making the process smooth and hassle-free.

Enhanced Engine Longevity

Crafted from premium materials and featuring hardened valve seats, these Hemi cylinder heads offer outstanding durability. The heads are designed to withstand high levels of heat and pressure, common in high-performance engines like the Hemi. This means fewer issues with overheating or valve seat failure, giving you more miles on the road and fewer trips to the shop. With superior craftsmanship and rigorous testing, these heads are built to last, keeping your engine in peak condition for years to come.

Two-Year Warranty Included

To further ensure your confidence in this product, we offer a two-year warranty with this pair of Hemi cylinder heads. If anything goes wrong within the first year of use, you’re covered. This gives you the peace of mind to invest in these heads knowing that you’re backed by our commitment to quality.

Key Features:

• Fixes the Valve Seat Issue – Comes with hardened valve seats for extreme durability and longevity.
• Designed for 2003-2008 Models – Perfect fit for Dodge, Chrysler, and Jeep Hemi engines from 2003 to 2008.
• OEM Quality – Built to meet or exceed original equipment manufacturer standards.
• Enhanced Durability – Built with high-quality materials for better heat resistance and longer lifespan.
• Two-Year Warranty – Confidence in quality with a full year of coverage.
• Core Return Required

Heavy Duty Parts Company – Core Returns Policy

At Heavy Duty Parts Company, core returns are essential to our ability to provide high-quality, cost-effective cylinder heads to our customers. These returned cores supply essential components, such as keepers, springs, and retainers, which are critical to engine performance.

No Core Charge – Just Send It Back!

Unlike other companies, we do not charge a core fee upfront. Instead, we rely on our customers to return their used cores to keep our supply chain running smoothly.

Why Core Returns Matter

• Many small but essential parts from cores are reused to maintain OEM-quality cylinder heads.
• Returning cores keeps prices competitive by reducing the need for costly new components.
• It supports sustainability by minimizing waste and conserving resources.

Send Back All Components

To ensure the quality and integrity of our remanufacturing process, we ask that you return all components that were originally included with your new cylinder head. This includes items such as:

• Rocker arms
• Camshafts (if applicable)
• Any other hardware that came with your purchase

Easy & Free Core Return Process

• Each purchase includes a prepaid core return label in a plastic sleeve on the box.
• Simply pack your core with all included components, attach the label, and drop it off with the carrier—no extra cost to you.
• Returned cores undergo inspection and recycling, ensuring maximum efficiency.

Customer Partnership & Sustainability

By returning your core and its components, you help maintain a reliable supply chain, ensuring we can continue offering top-quality products at the best prices. This process not only benefits your wallet but also contributes to a greener and more efficient automotive industry.

We appreciate your support in keeping our business and the industry running smoothly!

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Hemi Engine Overview

History of the Hemi Engine