to , while torque was unchanged. For 2006, power was increased to at 6,000 rpm and torque to ) at 4800 rpm with the addition of a MAF and a complete internal redesign of the engine; however, due to the new SAE rating procedures, ratings can vary slightly between years. The engine redline is 6,300 rpm. The LL8 was on the Ward's 10 Best Engines list for 2002 through 2005 and was the basis for all the other Atlas engines. With the closure of the Moraine, Ohio, plant and the discontinuation of the GMT360 platform (Chevrolet TrailBlazer, GMC Envoy, etc.), production of the LL8 also ended. Applications: 2002–2009 GMC Envoy, Envoy XL, and Envoy XUV 2002–2009 Chevrolet TrailBlazer and TrailBlazer EXT 2002–2004 Oldsmobile Bravada 2004–2007 Buick Rainier 2003–2008 Isuzu Ascender 2005–2009 Saab 9-7X 4.2i L52 (Vortec 3500) The L52 (also called Vortec 3500), is a straight-5 DOHC engine produced from 2004 through 2006. It displaces , with a bore and stroke. Dynoed at the flywheel it produces at 5,600 rpm and at 2,800 rpm. The engine redline is 6,300 rpm. Applications: 2002 Bel Air concept 2004–2006 Chevrolet Colorado and GMC Canyon 2006 Isuzu i-350 2006 Hummer H3 LLR (Vortec 3700) The LLR (also called Vortec 3700), is a straight-5 DOHC engine with dual balance shafts produced from 2007 through 2012. It displaces , courtesy of a larger bore while keeping the stroke. The LLR also corrected the head issue found in the L52. It produces at 5,600 rpm and at 4,600 rpm. The engine redline is 6,300 rpm. This five-cylinder engine achieves better fuel economy and performance than the six-cylinder, but with more power and torque than the four-cylinder. Applications: 2007–2012 Chevrolet Colorado and GMC Canyon 2007–2010 Hummer H3 2007–2008 Isuzu i-370 LK5 (Vortec 2800) The LK5 (also called the Vortec 2800) is a straight-4 DOHC engine produced between 2004 and 2006, with a bore and stroke. It produces at 5,600 rpm and of torque at 2,800 rpm. The engine redline is 6,300 rpm. Applications: 2004–2006 Chevrolet Colorado and GMC Canyon 2004–2006 Isuzu i-280 LLV (Vortec 2900) The LLV (also called Vortec 2900) is a straight-4 DOHC engine produced between 2007 and 2012, with a bore and a stroke. It replaced the LK5 and produced at 5,600 rpm and of torque at 2,800 rpm. The engine redline is 6,300 rpm. Applications: 2007–2012 Chevrolet Colorado and GMC Canyon 2007–2009 Isuzu i-290