Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Headgasket

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.This Part Fits: Year Make Model Submodel 2001-2004 Avanti II Base 2008-2009 Buick LaCrosse Super 2004-2007 Buick Rainier CXL 2004-2007 Cadillac CTS V 2002-2005 Cadillac Escalade Base 2007-2012 Chevrolet Avalanche LS 2007-2012 Chevrolet Avalanche LT 2007-2012 Chevrolet Avalanche LTZ 2010-2015 Chevrolet Camaro SS 1998-2002 Chevrolet Camaro Z28 1998-2002 Chevrolet Camaro Z28 SS 2011-2017 Chevrolet Caprice PPV 2009-2012 Chevrolet Colorado LT 2009-2012 Chevrolet Colorado WT 2003 Chevrolet Corvette 50th Anniversary Edition 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car 1997-2013 Chevrolet Corvette Base 2010-2013 Chevrolet Corvette Grand Sport 1998 Chevrolet Corvette Indianapolis 500 Pace Car 2001-2004 Chevrolet Corvette Z06 2006-2009 Chevrolet Impala SS 2004 Chevrolet Silverado 1500 Z