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 6.6L LB7 Duramax (2001–2004) offers a turbocharged V8 engine built for performance and towing. With its strong torque and horsepower, it handles heavy-duty tasks with ease. Ideal for both work and off-road use, the LB7 engine delivers reliable power.
Boost your truck’s performance today with a 6.6L LB7 Duramax upgrade!
Building engines the way the OEM factory should have in the first place.
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