New Pair Mercruiser 7.4L 454 Marine Cylinder Heads – Cast Iron Casting # 279 W/ Head Gasket Set and Bolts

Introducing the New Pair Mercruiser 7.4L 454 Marine Cylinder Heads – Cast Iron Casting # 279, designed for maximum durability and performance in demanding marine environments. This complete set includes fully assembled cylinder heads, a head gasket set, and bolts for a secure, hassle-free installation. Built from heavy-duty cast iron, these heads withstand high heat, pressure, and saltwater exposure, ensuring long-lasting reliability. Perfect for engine rebuilds, repairs, or upgrades, they offer an OEM fit for seamless performance in your Mercruiser 7.4L 454 engine.

Key Features:

• Fits Mercruiser 7.4L 454 marine engines for OEM compatibility
• Includes head gasket set & bolts for a complete installation
• Heavy-duty cast iron construction for strength & corrosion resistance
• Preloaded with valves & springs for quick, hassle-free setup
• Engineered for marine use, handling high heat & saltwater exposure
• Ideal for engine rebuilds, repairs, and performance upgrades

Applications:

• Fits Mercruiser 7.4L 454 marine engines

Ensure maximum reliability and efficiency in your New Pair Mercruiser 7.4L 454 Marine Cylinder Heads – Cast Iron Casting # 279 engine with this all-in-one cylinder head set, designed to keep your boat running smoothly for years to come.

Heavy Duty Parts Company – Quality You Can Trust

At Heavy Duty Parts Company, we take quality seriously. We thoroughly clean, inspect, and pressure test each cylinder head to ensure it meets the highest standards. Our state-of-the-art equipment is used for all seat and guide work, resurfacing, and vacuum testing. Whether you’re replacing a worn cylinder head or upgrading for enhanced performance, our cylinder heads exceed OEM standards, ensuring reliability and efficiency.

Warranty Information:

• Coverage: Heavy Duty Parts Company provides a two-year unlimited mileage parts warranty. A warranty card will be included with your invoice.
• Terms: By purchasing the cylinder head, you agree to the following warranty terms:
  • Keep the heat tab intact and unaltered.
  • Include a copy of the invoice and a Return Authorization number for returns.
  • The warranty covers parts only; labor and incidental costs are not covered.
  • The warranty does not cover damage caused by improper installation, overheating, abuse, or neglect.

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!

Shop

Mercruiser