It was replaced by the 310-hp LLY Duramax, with 605 lb-ft of torque, halfway through the 2004 model year. ... Like the 6.6 Duramax, the 6.7 Power Stroke uses aluminum cylinder heads.

The LLY also introduced an exhaust gas recirculation (EGR) system across the board for Duramax engines to help keep emissions ...

In 2004 GM released its variable vane turbo LLY RPO-code Duramax engine counter attack that was rated at 310 hp and 565 lb-ft of torque, only to be outdone by Dodge's 600-lb-ft Cummins and Ford's ...

New to the market is SoCal Diesel's 427ci Duramax stroker kit that increases the size of a Duramax engine from 6.6L to 7.1L (427ci) by fitting the engine with a -inch- longer stroke. That's right ...

The 6.6 Duramax and 6.7 Power Stroke are two engines powering ... featured 300 horsepower and 520 lb-ft of torque. It was replaced by the 310-hp LLY Duramax, ... cast aluminum cylinder ...