This pair of Max-Lift BSR Shaft Mount Rockers for Cathedral Port LS engines is a bolt-in rocker upgrade that requires no machine work to install. Clears factory valve covers while greatly increasing valvetrain rigidity.
COMP Cams is proud to announce another industry first: a bolt-in-ready Bushed Shaft Rocker System for GM LS engines. Thanks to innovative engineering, this patent pending Bushed Shaft Rocker System increases valve train stability and durability while decreasing deflection and providing bolt-in convenience for LS1, LS3 and LS7 cylinder heads. The COMP Cams Bushed Shaft Rocker System improves valve train stability and durability by securing all eight rocker arms onto a single rocker shaft. Thin tri-layer rocker arm bushings reduce rocker arm deflection and eliminate the high Hertz loading that can occur in needle bearing equipped rockers. Reduced rocker deflection increases valve train stiffness, ensuring that your LS is more efficient and durable under high loads. COMP Cams engineers worked to ensure long-term valve train durability by perfecting rocker to valve stem geometry and provisioning for supplementary pressurized oiling via threaded ends on the rocker shafts. Additionally, each rocker shaft is Plasma Nitrided, further increasing the system’s durability even when used with aggressive solid roller valve trains. The COMP Cams Bushed Shaft Rocker System for GM LS delivers high-level valve train stability, precise fitment, truer valve train geometry and increased load-bearing capacity in a package that is ready to bolt in that requires no machine work.
COMP Cams is proud to announce another industry first: a bolt-in-ready Bushed Shaft Rocker System for GM LS engines. Thanks to innovative engineering, this patent pending Bushed Shaft Rocker System increases valve train stability and durability while decreasing deflection and providing bolt-in convenience for LS1, LS3 and LS7 cylinder heads. The COMP Cams Bushed Shaft Rocker System improves valve train stability and durability by securing all eight rocker arms onto a single rocker shaft. Thin tri-layer rocker arm bushings reduce rocker arm deflection and eliminate the high Hertz loading that can occur in needle bearing equipped rockers. Reduced rocker deflection increases valve train stiffness, ensuring that your LS is more efficient and durable under high loads. COMP Cams engineers worked to ensure long-term valve train durability by perfecting rocker to valve stem geometry and provisioning for supplementary pressurized oiling via threaded ends on the rocker shafts. Additionally, each rocker shaft is Plasma Nitrided, further increasing the system’s durability even when used with aggressive solid roller valve trains. The COMP Cams Bushed Shaft Rocker System for GM LS delivers high-level valve train stability, precise fitment, truer valve train geometry and increased load-bearing capacity in a package that is ready to bolt in that requires no machine work.
Application Summary:
| Year | Make/Model |
|---|---|
| 2008-2009 | Buick Allure |
| 2008-2009 | Buick LaCrosse |
| 2004-2007 | Buick Rainier |
| 2002-2005 | Cadillac Escalade |
| 2009-2013 | Cadillac Escalade |
| 2007-2013 | Chevrolet Avalanche |
| 2002-2006 | Chevrolet Avalanche 1500 |
| 2010 | Chevrolet Cheyenne |
| 2016 | Chevrolet Cheyenne |
| 2009-2012 | Chevrolet Colorado |
| 2005-2007 | Chevrolet Corvette |
| 2003-2007 | Chevrolet Express 1500 |
| 2003-2005 | Chevrolet Express 2500 |
| 2010-2019 | Chevrolet Express 2500 |
| 2010-2019 | Chevrolet Express 3500 |
| 2017 | Chevrolet Express Cargo |
| 2017-2018 | Chevrolet Express Pasajeros |
| 2006-2009 | Chevrolet Impala |
| 2016-2017 | Chevrolet LCF 3500 |
| 2006-2007 | Chevrolet Monte Carlo |
| 1999-2013 | Chevrolet Silverado 1500 |
| 2007 | Chevrolet Silverado 1500 Classic |
| 1999-2000 | Chevrolet Silverado 2500 |
| 2012 | Chevrolet Silverado 2500 |
| 2014-2016 | Chevrolet Silverado 2500 |
| 2010-2019 | Chevrolet Silverado 2500 HD |
| 2016-2018 | Chevrolet Silverado 3500 |
| 2010-2019 | Chevrolet Silverado 3500 HD |
| 2003-2004 | Chevrolet SSR |
| 2015 | Chevrolet Suburban |
| 2017-2018 | Chevrolet Suburban |
| 2000-2014 | Chevrolet Suburban 1500 |
| 2010-2013 | Chevrolet Suburban 2500 |
| 2016-2019 | Chevrolet Suburban 3500 HD |
| 2000-2014 | Chevrolet Tahoe |
| 2006-2008 | Chevrolet Trailblazer |
| 2003-2006 | Chevrolet Trailblazer EXT |
| 2009-2012 | GMC Canyon |
| 2005-2009 | GMC Envoy |
| 2003-2006 | GMC Envoy XL |
| 2004-2005 | GMC Envoy XUV |
| 2003-2007 | GMC Savana 1500 |
| 2003-2005 | GMC Savana 2500 |
| 2010-2019 | GMC Savana 2500 |
| 2010-2019 | GMC Savana 3500 |
| 1999-2013 | GMC Sierra 1500 |
| 2007 | GMC Sierra 1500 Classic |
| 1999-2000 | GMC Sierra 2500 |
| 2010-2019 | GMC Sierra 2500 HD |
| 2010-2019 | GMC Sierra 3500 HD |
| 2000-2014 | GMC Yukon |
| 2000-2014 | GMC Yukon XL 1500 |
| 2010-2013 | GMC Yukon XL 2500 |
| 2004 | Hummer H2 |
| 2007 | Hummer H2 |
| 2008-2010 | Hummer H3 |
| 2009-2010 | Hummer H3T |
| 2003-2006 | Isuzu Ascender |
| 2005-2008 | Pontiac Grand Prix |
| 2005-2009 | Saab 9-7x |