Restore dependable heavy-duty towing horsepower, throttle response, and smooth powertrain performance with a genuine OEM tested 6.0L LS Vortec V8 gasoline engine assembly removed from a 2004 Chevrolet/GMC heavy-duty truck. Verified running condition, this Gen III small block V8 delivers reliable oil pressure, strong compression, and direct bolt-on compatibility for 2500, 2500HD, 3500, and 3500HD platforms.
Heavy-Duty Performance & Vortec Integrity
- Tested Running Condition: Inspected and verified in good running order with solid compression and smooth operational performance.
- Gen III 6.0L Vortec Architecture: Features high-durability cast iron block construction with aluminum cylinder heads engineered for heavy towing and commercial duty cycles.
- Direct OEM Replacement Fit: Factory mounting interfaces align flush with stock motor mounts, transmission bellhousing bolts, and exhaust manifold interfaces.
- Versatile LS Swap & Repair Donor: Excellent direct replacement assembly or complete base donor engine for LS truck swaps and fleet rebuild projects.
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