Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build
The 2007–2010 Duramax 6.6L LMM pistons are cast aluminum. They are built to handle high heat and pressure from diesel combustion. Each piston has a bowl in the center to improve fuel mixing and burn efficiency.
The LMM uses a wrist pin and connecting rod to link the pistons to the crankshaft. Factory pistons work well for stock power levels. In high-performance builds, forged pistons are often used for added strength and durability. Proper piston fit is key to sealing, power, and engine life.
Building engines the way the OEM factory should have in the first place.
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