Availability
Fleece Performance introduces the Freedom Series cylinder heads for 6.6L Duramax engines, found in many Chevy and GMC trucks from 2001 and up. Each cylinder head is manufactured in-house at the 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 valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Available with new or remanufactured casting.
Not Yet Reviewed
$1,099.00
Trust Fleece Performance to bring you the best OE alternative parts you need! Their replacement rocker arm assemblies are direct-fit replacements for specific Cummins engines that meet or exceed OE specifications. Service your diesel with the help of Fleece Performance.
Not Yet Reviewed
$119.99
Fleece Performance rear engine cover coolant return plugs add a finishing touch under the hood of your truck, such as when you're installing an aftermarket turbo. Machined from 6061 aluminum, the plugs feature an anodized black finish and are laser-etched with the Fleece "F." A high-temperature silicone O-ring is included to prevent leaks. Order the plug recommended for fitment on your vehicle.
Not Yet Reviewed
$13.99
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$19.99
Upgrade your Cummins valve springs and retainers with Fleece Performance spring and retainer kits. They are manufactured from "super clean" high-tensile chrome silicon steel with a proprietary multi-step heat treating process that minimizes load loss. The springs have a seat pressure of 105 lbs. with an open pressure of 195 lbs. at maximum lift. The retainers are through hardened 4140 chromoly steel and have a black oxide finish. Please note: Retainer locks are not included.
Not Yet Reviewed
$499.99
When replacing the stock VGT turbo on your 6.7L Cummins with a non-water-cooled turbo, these delete plugs from Fleece Performance are a must. They conveniently fit the stock coolant feed from the riser block and coolant return on the firewall. Kit includes: * Two 16mm Allen head port plugs * One 18mm Allen head port plug
Not Yet Reviewed
$29.95
Fleece Performance billet rocker arm bridges offer a massive 2.5 times strength improvement over factory bridges for your diesel. They are machined from billet 8620 steel, surface ground for flatness, case hardened, and carburized. The rocker arm bridges also provide improved oiling to the valve stems, and they are branded with the Fleece Performance "F".
( 2 )
$467.43
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$512.54
If you're upgrading or replacing your turbocharger, upgrade your CCV tube coupler at the same time with one from Fleece Performance. The OE plastic tube is prone to cracking and breaking, but Fleece CCV tube couplers are crafted from anodized billet aluminum, providing a replacement that looks great and will last much longer.
Not Yet Reviewed
$29.99
Fleece Performance Stage 2 pushrods are stock-length units with robust forged cup ends to upgrade your diesel engine. They are produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. Fleece Stage 2 pushrods are designed to stand up to higher valve spring pressure, rpms, and cylinder pressure while minimizing valvetrain deflection. Choose the set designed for your diesel.
Not Yet Reviewed
$400.14
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