The Chevy 4.2l engine, LL8 (or Vortec 4200), is a straight-6 truck engine. It was the first Atlas engine, and was designed for GM’s new SUV line. It displaces 4.2L, with a 93mm (3.7 in) bore and 102mm (4.0 in) stroke.
When introduced, this Chevy 4.2l engine’s power was 270 hp at 6000 rpm and torque was 275 lb·ft at 3600 rpm. However 2003 saw a slight bump in power to 275 hp, while torque was unchanged. Therefore 2006, power was increased to 291 hp at 6000 rpm and torque to 277 lb·ft at 4800 rpm with the addition of a MAF and a complete internal redesign of the engine. The Atlas LL8 was on the Ward’s 10 Best Engines list for 2002 through 2005.
- 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
Hence with the closing of the Moraine, OH plant and the termination of the GMT-360 platform (Chevrolet TrailBlazer, GMC Envoy, etc.) furthermore the Atlas LL8 (Vortec 4200) has also been terminated.
In addition this Chevy 4.2L engine is available at Roadmaster for $2795 exchange.
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