Remanufactured Pair 4.3 GM Chevrolet Cylinder Heads # 140 / 772 Casting

Introducing the Pair 4.3L GM Chevrolet Cylinder Heads #140 / 772 Casting, a versatile solution designed for automotive applications. These high-quality cylinder heads are compatible with 4.3L GM Chevrolet engines, as well as models such as the S10, Sonoma trucks, and Astro Vans, ensuring reliable performance and durability across all platforms.

Featuring the precision #140 / 772 casting, these cylinder heads come preloaded with valves and springs for an effortless installation. Built to meet OEM standards, they are perfect for replacing worn components or upgrading your engine for enhanced longevity. With superior durability needed for road use, these heads are the perfect choice for various applications.

Key Features:

• Fits 4.3L GM S10, Sonoma trucks, and Astro Vans
• Fully loaded with valves and springs for easy installation
• Engineered for durability for on-road use
• Ideal for engine rebuilds
• Core Return Required

Applications:

• ASTRO 96-99 (6-262, 4.3L)BLAZER S10/JIMMY S15 96-99 (6-262, 4.3L)BRAVADA 96-99 (6-262, 4.3L)CHEVROLET 1500 PICKUP 96-98 6-262 (4.3L);ENVOY 98-99 (6-262, 4.3L)

  EXPRESS 1500 VAN 96 6-262 (4.3L); thru 8500 GVW

  EXPRESS 1500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  EXPRESS 2500 VAN 96 6-262 (4.3L); thru 8500 GVW

  EXPRESS 2500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  EXPRESS 3500 VAN 96 6-262 (4.3L); thru 8500 GVW

  EXPRESS 3500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  GMC 1500 PICKUP 96-98 6-262 (4.3L);

  ISUZU HOMBRE 97-99 6-262 (4.3L)

  S10/S15/SONOMA 96-99 6-262 (4.3L)

  SAFARI (GMC) 96-99 (6-262, 4.3L)

  SAVANA 1500 VAN 96 6-262 (4.3L); thru 8500 GVW

  SAVANA 1500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  SAVANA 2500 VAN 96 6-262 (4.3L); thru 8500 GVW

  SAVANA 2500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  SAVANA 3500 VAN 96 6-262 (4.3L); thru 8500 GVW

  SAVANA 3500 VAN 97-02 6-262 (4.3L); 4L60E transmission

  SIERRA 1500 PICKUP 99 4.3L

  SILVERADO 1500 PICKUP 99 4.3L

These cylinder heads are built to provide long-lasting performance and reliability. Enjoy a smooth and powerful engine with this versatile pair of 4.3 GM Chevrolet  cylinder heads

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!

Shop

Chevy