New Pair Mercruiser 7.4L 454 Marine Cylinder Heads – Cast Iron Casting # 279

Introducing the New Mercruiser 7.4L 454 Marine Cylinder Heads – Cast Iron #279, specifically designed to meet the rigorous demands of marine environments. These cylinder heads are ideal for Mercruiser 7.4L 454 engines, offering superior performance, durability, and reliability in every application. Whether you’re upgrading your engine or replacing worn-out heads, these high-quality cast iron cylinder heads are the perfect solution to ensure your boat’s engine runs smoothly and efficiently.

Crafted from durable, heavy-duty cast iron, these cylinder heads are built to withstand the intense heat and pressure commonly experienced in marine engines. The #279 casting provides precise OEM compatibility, ensuring a flawless fit and easy installation. Preloaded with valves and springs, these heads make installation simple, minimizing downtime and getting your boat back in the water quickly.

Marine engines often operate under challenging conditions, such as exposure to saltwater and extended high RPMs, so it’s essential to use parts that can handle the stress. These cylinder heads are specifically engineered for marine use, providing excellent corrosion resistance, heat management, and overall reliability. Whether you’re enjoying a relaxing day on the water or pushing your boat to its performance limits, these cylinder heads deliver the power and durability you need.

Key Features:

• Designed for Mercruiser 7.4L 454 marine engines
• Cast iron construction for superior strength and corrosion resistance
• Preloaded with valves and springs for easy, hassle-free installation
• Engineered to meet or exceed OEM specifications
• Ideal for engine rebuilds, repairs, or upgrades in marine environments
• Built to withstand high levels of heat, pressure, and exposure to saltwater

Applications:

• Fits Mercruiser 7.4L 454 marine engines

Upgrade your Mercruiser 7.4L 454 marine engine with these high-performance cylinder heads and enjoy a smoother, more efficient engine that’s built to last. Designed for maximum durability and reliability, these heads ensure your boat’s engine runs at its best, no matter where your adventures take you.

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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