In almost 25 years powering General Motors trucks and SUVs, the 6.6-liter Duramax V8 diesel engine has earned a loyal following for performance and efficiency.

In mid-2004, Chevy followed up the LB7 with the LLY Duramax, which boasted a new injector design that made servicing much easier. Debuting in the same heavy-duty Chevy Silverado and GMC Sierra ...

Inside the New Chevrolet Performance 6.6-Liter L8T V-8 Crate Engine! With more displacement and a strong iron block, this crate engine could be just what your hot rod project has been waiting for.

With more displacement, a hotter camshaft, and a 6.6-liter iron block, this L8P crate engine is perfect for hot rod engine swaps and a bit of boost.