New Pair GMC Chevrolet Truck 454 7.4L Cylinder Heads – Cast Iron 1996-2000 # 279 W/ Head Gasket Set and Bolts, Water Pump & Timing Set

Heavy Duty Parts Company proudly offers a New Pair GMC Chevrolet Truck 454 7.4L Cylinder Heads, designed for 1996-2000 GMC and Chevrolet trucks. These high-quality cast iron heads provide exceptional durability and OEM-quality fit, making them ideal for heavy-duty applications. This complete set includes cylinder heads, a head gasket set, bolts, water pump, and timing set for a secure and hassle-free installation.

Crafted from durable cast iron, these cylinder heads are built to withstand extreme conditions, ensuring superior strength and longevity. The #279 casting is known for its reliability and compatibility, making it perfect for heavy-duty trucks used for towing, hauling, and other demanding tasks. Fully assembled with valves and springs, these heads simplify installation, reducing downtime and getting your truck back on the road quickly.

Key Features of GMC Chevrolet 454 7.4L Cylinder Heads

• Vehicle Compatibility: Fits 1996-2000 GMC and Chevrolet trucks with 7.4L 454 engines.
• Heavy-Duty Cast Iron Construction: Ensures maximum durability and performance in tough environments.
• Preloaded with Valves & Springs: Ready for easy installation, saving time and effort.
• Complete Kit for a Hassle-Free Install: Includes head gasket set, bolts, water pump, and timing set for a full rebuild solution.
• OEM Fit & Performance: Meets or exceeds OEM standards for reliability and efficiency.
• Ideal for Heavy-Duty Applications: Perfect for trucks used for towing, hauling, or other demanding work.

Applications for GMC Chevrolet 454 7.4L Cylinder Heads

• Fits GMC and Chevrolet trucks equipped with 7.4L 454 engines, model years 1996-2000.

Give your truck the performance boost it needs with these high-quality, durable cylinder heads. Built to handle the toughest jobs, this complete set ensures your engine operates at its best, providing long-lasting reliability and optimal power for all your heavy-duty needs.

CHEVROLET 2500 PICKUP 96-00 8-454 (7.4L);
CHEVROLET 30 VAN 96 8-454 (7.4L); 30 HD
CHEVROLET 3500 PICKUP 96-00 8-454 (7.4L);
EXPRESS 3500 VAN 96-00 8-454 (7.4L);
GMC 2500 PICKUP 96-00 8-454 (7.4L);
GMC 3500 PICKUP 96-00 8-454 (7.4L);
GMC 3500 VAN 96 8-454 (7.4L); 3500 HD
SAVANA 3500 VAN 96-00 8-454 (7.4L);
SUBURBAN 2500 96-99 8-454 (7.4L);

Heavy Duty Parts Company – Core Returns Policy

Effective December 17, 2025

At Heavy Duty Parts Company, core returns are essential to our ability to provide high-quality, cost-effective cylinder heads. Returned cores supply critical components—such as keepers, springs, and retainers—that are vital to proper engine performance and allow us to maintain OEM-level quality.

No Upfront Core Charge

Unlike many suppliers, we do not charge a core fee upfront. Instead, we rely on customers to return their used cores within the required timeframe.

Core Return Requirements

• Cores are due within 30 days of the purchase date

• If a core is not returned within 60 days, the product warranty is void

• Unreturned cores will be charged as follows:

  • Cylinder heads under $600: $200 per unreturned core

  • Cylinder heads $600 and above: $400 per unreturned core

Customers needing additional time may contact us to request an extension. Approved extensions will prevent core charges from being applied.

Core Return Process

Cylinder heads are shipped with prepaid core return labels included in packets attached to the outside of each box. If labels are missing, customers should contact us for replacements prior to returning the core.

Core Eligibility

Some cylinder heads do not require a core return. In certain cases, core requirements may be waived at our discretion.

Why Core Returns Matter

• Reused core components help maintain OEM-quality standards

• Core returns allow us to keep pricing competitive

• Recycling cores supports sustainability by reducing waste and conserving resources

This policy applies to all purchases made on or after December 17, 2025.

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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