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Fleece Performance

Fleece Performance 17-23 GM 2500/3500 Freedom Series Cylinder Head (Driver Side)

Fleece Performance 17-23 GM 2500/3500 Freedom Series Cylinder Head (Driver Side)

$1,218.99 USD
$1,218.99 USD
Sale Sold out
Shipping calculated at checkout.

Available on backorder

Shipping & returns

Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day. Wrong fitment? Send it back within 30 days — we'll help you find the part that does fit.

Fitment & build help

Not sure if this fits your platform? Tell us your year, make, model, and trim — we'll confirm before you order. For bigger builds, we'll help you plan the full stack.

Warranty

Every product on this site ships through authorized channels with full manufacturer warranty. If something breaks in normal use, we'll help you get it resolved.

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Introducing our Freedom Series cylinder heads for the 2017 - 2023 L5P 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. No core charge! Features Re-manufactured OE casting New valves, valve guides, springs, and valve seals Pressure and leak tested Multi-angle valve job Installation Notes: We recommend using GM head gasket (Grade C, 12727486)

This Part Fits:

Year Make Model Submodel
2021-2023 Chevrolet Silverado 2500 HD Custom
2017-2023 Chevrolet Silverado 2500 HD High Country
2017-2023 Chevrolet Silverado 2500 HD LT
2017-2023 Chevrolet Silverado 2500 HD LTZ
2017-2023 Chevrolet Silverado 2500 HD WT
2017-2023 Chevrolet Silverado 3500 HD High Country
2017-2023 Chevrolet Silverado 3500 HD LT
2017-2023 Chevrolet Silverado 3500 HD LTZ
2017-2023 Chevrolet Silverado 3500 HD WT
2020-2023 GMC Sierra 2500 HD AT4
2017-2021 GMC Sierra 2500 HD Base
2017-2023 GMC Sierra 2500 HD Denali
2022-2023 GMC Sierra 2500 HD Pro
2017-2023 GMC Sierra 2500 HD SLE
2017-2023 GMC Sierra 2500 HD SLT
2020-2023 GMC Sierra 3500 HD AT4
2017-2021 GMC Sierra 3500 HD Base
2017-2023 GMC Sierra 3500 HD Denali
2022-2023 GMC Sierra 3500 HD Pro
2017-2023 GMC Sierra 3500 HD SLE
2017-2023 GMC Sierra 3500 HD SLT

  • Free shipping over $99

    Orders over $99 ship free in the lower 48. Most in-stock gear leaves the warehouse the next business day.

  • Wrong fitment? We make it right.

    If a part doesn't fit your platform the way it should, send it back. We handle the return and find you the part that does.

  • Authorized dealer support

    Every product moves through proper channels. Full manufacturer warranty, real tech support — no gray-market headaches.