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2002-2009 GMC/Chevy 4.2L Long Block Engine

GMC’s 4.2L is a V6 DOHC engine with a displacement of 253.9 cubic inches. It has a 93 mm × 102 mm (3.66 in × 4.02 in) bore and stroke, and produces 270 to 291 horsepower at 6,000 rpm. This engine was used in GMC’s Envoy, Chevy’s TrailBlazer, Oldsmobile’s Bravada, Buick’s Rainier, Isuzu’s Ascender, and Saab’s 9-7X 4.2i. All of these applications are well suited for the GMC 4.2L because of its power and torque output. The GMC 4.2L is a great engine that’s known for its reliability.

2002-2009 GMC Chevy 4.2 Liter Long Block Engine