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The Fleece Performance Freedom Series solid aluminum block for the LSR (2024+ 6.6L Duramax) delivers the strongest foundation available for extreme-power builds that push far beyond factory cast-iron block limits. CNC-machined from a single 1,000+ lb 6061-T6 aircraft-grade aluminum forging, this standard-deck block provides massive cylinder wall and deck thickness, enhanced oiling, and approximately 115 lb weight savings while supporting 3,000+ horsepower combinations when paired with proper head retention and girdle systems.
| Year | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 2024-2026 | Chevrolet | Silverado 2500/3500 | LSR 6.6L Duramax | Standard Deck |
| 2024-2026 | GMC | Sierra 2500/3500 | LSR 6.6L Duramax | Standard Deck |
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
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Engine block parts and internals for HEMI, Hellcat, Trackhawk, TRX, LS, LT, Coyote, EcoBoost, K-Series, VR38DETT, and Cummins diesel builds are stocked at Black Ops Auto Works. Shop main and rod bearings, engine gaskets and gasket kits, engine mounts, block off plates, block heaters, PCV valves, sleeves, engine covers, and complete engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2,187 engine block SKUs across rotating assembly, sealing, mounting, and engine bay dress-up categories. What This Category Covers The Engine Block collection groups the internal and structural components that make up the bottom end and block assembly of a performance or OEM-replacement engine. Coverage spans bearings for rotating assembly refreshes, gaskets and gasket kits for sealing rebuilds, engine mounts for swap and performance builds, and engine bay dress-up pieces for HEMI, Hellcat, and ...
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Complete crate engines, long blocks, and short block assemblies give builders a reliable, matched-component starting point for engine swaps, restorations, and high-output project builds where sourcing a core and rebuilding from scratch costs more in time and risk than a professionally assembled replacement. The most sought-after crate engine platforms include the GM LS family in 5.3L, 6.0L, and 6.2L displacements, the Ford 5.0L Coyote and 7.3L Godzilla, the Chrysler 6.4L Apache HEMI, and small block and big block Chevy stroker combinations in displacements from 383 to 496 cubic inches. Long block assemblies include cylinder heads, camshaft, and valvetrain already installed, simplifying installation for most engine bay configurations, while short block assemblies are the preferred starting point for builders who want to specify their own top end components for a custom power and compression target. The swap market for all these platforms is mature, with engine mounts, wiring harness ...
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Fleece Performance diesel parts for Ford Power Stroke, Ram Cummins, and Chevrolet/GMC Duramax trucks are stocked at Black Ops Auto Works. Shop Cheetah turbochargers, TurboBrake exhaust brakes, CP3 and CP4 fuel pump upgrades, fuel filter assemblies, coolant tanks, head gasket sets, and sensor pigtails for LB7, LLY, LBZ, LMM, LML, and L5P Duramax engines and 5.9L and 6.7L Cummins engines. Every product is filterable by year, make, model, and engine generation so the correct part ships the first time. Black Ops Auto Works carries 333 Fleece Performance SKUs across turbochargers, fuel systems, cooling, and gaskets. What This Collection Covers Fleece Performance Engineering builds its catalog around the Duramax and Cummins common rail diesel platforms that dominate the high horsepower diesel truck community. Founded by brothers Brayden and Chase Fleece in a rural Indiana pole barn, the company grew into a technology leader in common rail injection systems, developing the Cheetah turb...
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