8GF1

Duramax V8 engine is a family of 6.6-liter diesel V8 engines.
The 32-valve OHC engine is manufactured at DMAX  in the U.S.A. under the name of Duramax 6600 Diesel to power GM full-size pickups, full-size vans commercial vehicles. The Duramax 6600 is regarded as one of the best performing diesels in the US market