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Summer Sale Fleece Performance Cylinder Head Set, 2011-2016 Lml With A 60% Price Cut [SsW70BFf]

$87.99 $281.99 -69%

Fleece Performance Cylinder Head Set for LML Duramax Elevate your 2011-2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel with the Fleece Performance Cylinder Head Set. This Freedom Series cylinder head is designed to breathe new life i

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Summer Sale Fleece Performance Cylinder Head Set, 2011-2016 Lml With A 60% Price Cut [SsW70BFf]

Fleece Performance Cylinder Head Set for LML Duramax

Elevate your 2011-2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel with the Fleece Performance Cylinder Head Set. This Freedom Series cylinder head is designed to breathe new life into your engine, providing enhanced performance and reliability. Each cylinder head is meticulously crafted in-house at the Freedom Racing Engine shop, ensuring it meets or exceeds factory specifications. Trust in the quality and precision that Fleece Performance brings to the table.

Key Features and Specifications

The Fleece Performance Cylinder Head Set is a comprehensive upgrade for your Duramax engine. It includes new casting, valve guides, springs, and valve seals, guaranteeing a leak-free and high-performance operation. The heads are pressure and leak tested, decked, and equipped with precision ground stock valves at a 45-degree angle for optimal flow. Additionally, the multi-angle valve job ensures maximum efficiency and durability. This set is the perfect choice for both daily drivers and those who tow heavy loads, offering a balance of power and reliability.

Included and Optional Components

The Fleece Performance Cylinder Head Set comes with both driver and passenger side cylinder heads, providing a complete solution for your engine upgrade. For added convenience, we recommend using GM 12637788 head gasket (Grade C, Right) and GM 12637785 head gasket (Grade C, Left) for the best fit and performance. If you're looking for further enhancements, consider adding the DmaxStore Head Stud Kit or ARP Pro Series Head Studs for an even stronger and more durable setup. With a 1 Year Limited Parts Warranty, you can purchase with confidence, knowing that Fleece Performance stands behind the quality of their products.

What Our Customers Say

February 6, 2026

Absolutely no complaints!

A very clean interface with no unnecessary clutter.

- George H..

February 6, 2026

Absolutely no complaints!

This has become an indispensable tool for me.

- Maya Butler.

February 6, 2026

Absolutely no complaints!

It has exceeded my needs and expectations.

- Genesis Patterson.

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