Remanufactured GM V6 4.3L Direct Injection Casting # 344 Pair Cylinder Heads

Name: Remanufactured GM V6 4.3L Direct Injection Casting # 344 Pair Cylinder Heads
SKU: GM344R
Availability: InStock

Original price was: $670.00.Current price is: $550.00.

2-Year

Warranty

Unlimited Mileage

Assembled

In USA

Florida-Based Shop

Quality

Tested

Pressure & Vacuum

Flat Rate

$49.99 Ship

No Surprises

Pay with Credit Card

Additional Info

Remanufactured GM Chevrolet 4.3L V6 Cylinder Heads (344 Casting) – Pair

Professional-Grade OEM Replacement Cylinder Heads for GM 4.3L V6 Engines

This pair of remanufactured cylinder heads is engineered for GM 4.3L V6 engines featuring the 344 casting number. Each unit is precision-restored to meet original equipment standards, providing a reliable, direct-fit solution for your engine rebuild. These heads come fully assembled and ready for installation to ensure restored performance and durability.

🛠️ In-House Machining Process

Cleaning: Fully disassembled and thermally cleaned.
Soda Blasted: Castings are blasted with Sodium Bicarbonate. Because baking soda is water-soluble, there is zero risk of abrasive media clogging oil passages.
Pressure Testing: Tested to 60 PSI to ensure no cracks or porosity leaks.
Surfacing: All heads are resurfaced on our Rottler S85A for a precision gasket-sealing surface.
Valve Job: Multi-angle valve job performed; every port is Vacuum Tested to ensure valves are seated 100% airtight.

📊 Technical Specifications

Engine Size: 4.3L V6
Casting Number: 344
Fuel Delivery: Direct Injection
Condition: Remanufactured
Quantity: Pair (Two Heads)
Core Return Required

🚛 Fitment Data

Common Applications:

GMC Sierra 1500 Pickup: 2014–2016 GMC Sierra 1500 Pickup (4.3L)
Chevrolet Silverado 1500 Pickup: 2014–2016 Chevrolet Silverado 1500 Pickup (4.3L)
Chevrolet Express 2500 Van: 2018–2024 Chevrolet Express 2500 Van (4.3L)
Chevrolet Express 3500 Van: 2018–2024 Chevrolet Express 3500 Van (4.3L)
GMC Savana 2500 Van: 2018–2024 GMC Savana 2500 Van (4.3L)
GMC Savana 3500 Van: 2018–2024 GMC Savana 3500 Van (4.3L)
GMC Sierra 1500 Pickup: 2017–2018 GMC Sierra 1500 Pickup (4.3L)
GMC Sierra 1500 Pickup: 2019 GMC Sierra 1500 Pickup (4.3L New Style – Mirrors Mount On Door Skin)
GMC Sierra 1500 Pickup: 2020–2021 GMC Sierra 1500 Pickup (4.3L)
Chevrolet Silverado 1500 Pickup: 2017–2018 Chevrolet Silverado 1500 Pickup (4.3L)
Chevrolet Silverado 1500 Pickup: 2019 Chevrolet Silverado 1500 Pickup (4.3L New Style – Mirrors Mount On Door Skin)
Chevrolet Silverado 1500 Pickup: 2020–2021 Chevrolet Silverado 1500 Pickup (4.3L)

[+] Click to View Full Detailed Fitment List

2014 GMC Sierra 1500 Pickup 4.3L
2015 GMC Sierra 1500 Pickup 4.3L
2016 GMC Sierra 1500 Pickup 4.3L
2014 Chevrolet Silverado 1500 Pickup 4.3L
2015 Chevrolet Silverado 1500 Pickup 4.3L
2016 Chevrolet Silverado 1500 Pickup 4.3L
2018 Chevrolet Express 2500 Van 4.3L
2019 Chevrolet Express 2500 Van 4.3L
2020 Chevrolet Express 2500 Van 4.3L
2021 Chevrolet Express 2500 Van 4.3L
2022 Chevrolet Express 2500 Van 4.3L
2023 Chevrolet Express 2500 Van 4.3L
2024 Chevrolet Express 2500 Van 4.3L
2018 Chevrolet Express 3500 Van 4.3L
2019 Chevrolet Express 3500 Van 4.3L
2020 Chevrolet Express 3500 Van 4.3L
2021 Chevrolet Express 3500 Van 4.3L
2022 Chevrolet Express 3500 Van 4.3L
2023 Chevrolet Express 3500 Van 4.3L
2024 Chevrolet Express 3500 Van 4.3L
2018 GMC Savana 2500 Van 4.3L
2019 GMC Savana 2500 Van 4.3L
2020 GMC Savana 2500 Van 4.3L
2021 GMC Savana 2500 Van 4.3L
2022 GMC Savana 2500 Van 4.3L
2023 GMC Savana 2500 Van 4.3L
2024 GMC Savana 2500 Van 4.3L
2018 GMC Savana 3500 Van 4.3L
2019 GMC Savana 3500 Van 4.3L
2020 GMC Savana 3500 Van 4.3L
2021 GMC Savana 3500 Van 4.3L
2022 GMC Savana 3500 Van 4.3L
2023 GMC Savana 3500 Van 4.3L
2024 GMC Savana 3500 Van 4.3L
2017 GMC Sierra 1500 Pickup 4.3L
2018 GMC Sierra 1500 Pickup 4.3L
2019 GMC Sierra 1500 Pickup 4.3L New Style – Mirrors Mount On Door Skin
2020 GMC Sierra 1500 Pickup 4.3L
2021 GMC Sierra 1500 Pickup 4.3L
2017 Chevrolet Silverado 1500 Pickup 4.3L
2018 Chevrolet Silverado 1500 Pickup 4.3L
2019 Chevrolet Silverado 1500 Pickup 4.3L New Style – Mirrors Mount On Door Skin
2020 Chevrolet Silverado 1500 Pickup 4.3L
2021 Chevrolet Silverado 1500 Pickup 4.3L

📦 Core Return & Warranty

Core Process: No upfront core fee. Receive your new heads and compare them to your originals before installation. Once complete, use the pre-paid return label included in your shipment. Cores must be returned within 30 days. Click here for Core Policy.
Warranty: Includes a 2-Year Unlimited Mileage Warranty. Click here for Warranty details.

★★★★★

“These guys know their stuff when it comes to cummins, they knew what head number I needed and gave me a quote on the spot”

Raymond Adelante, Florida

★★★★★

“They were nice to talk to on the phone and were easy to deal with, especially since I’ve never ordered something like this before! Thank you”

Jenifer Longarden, Ohio

★★★★★

“Local shop recommended buying from here, it was really quick and easy”

Howard Trent, Minnesota

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727-609-1700

sales@heavydutypartscompany.com

Recommended buying from here, it was really quick and easy