Industrial Injection 04.5-06 Chevrolet LLY Duramax Performance Short Block ( No Heads )

This is the Industrial Injection PDM-LLYRSB performance short block, built for the 2004-2005 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks equipped with the LLY Duramax engine. If you're looking to rebuild or significantly upgrade the core of your engine, this short block is a solid foundation. It includes the engine block, crankshaft, connecting rods, and pistons, but does not come with cylinder heads, meaning you'll need to source those separately or use your existing ones if they are in good condition and suitable for your build.

Industrial Injection has put together a well-built short block designed for increased performance. They start with a robust block and equip it with a forged crankshaft and connecting rods, which are stronger than the stock cast components. This makes it a good choice if you plan on adding more power through tuning, larger injectors, or a bigger turbocharger. The pistons are also selected for durability under higher loads. This assembly is balanced to ensure smooth operation and longevity, even when pushed harder than stock.

When undertaking a project like this, it's important to have all the necessary supporting components ready. Since this is a short block, you will need to transfer or purchase cylinder heads, camshafts, lifters, pushrods, and all the associated valvetrain components. You'll also need to consider new gaskets, seals, and fluids for the complete engine assembly. This short block is a significant step towards a high-performance LLY Duramax, but it requires careful planning and execution to get your truck back on the road with improved power and reliability.