This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, this rocker fits LS1/2/6 with a 3/8" diameter stud.
As LS engines continue to grow in popularity, COMP Cams(R) has expanded its line of rocker arms to build components specific to LS applications. New Ultra Pro Magnum(TM) Rockers are made from investment-cast 8650 Chromemoly steel, utilize upgraded Trunions and needle bearings over stock and are stronger, stiffer and more durable than the stock parts. They also feature a 1.8 ratio (compared to the stock rockers' 1.7) and utilize a roller tip instead of a slider. The higher ratio and increased stiffness make these rockers a great option for increasing lift without changing cams. This increased stiffness, along with the upgraded Trunion package and roller wheel, also makes them a perfect choice when running aftermarket valve springs. The rockers are available in a bolt-down design that uses stock rocker stands and in a stud-mount option for customers looking for an adjustable valve train. The stud-mount version is perfect for individuals running mechanical lifters as well. COMP Cams(R) LS Ultra Pro Mangum(TM) Rockers Arms are available for LS1, LS2, LS3, LS6 and LS-based truck engines and come in individual sets or kits featuring studs and guide plates. Kits do not include pushrods, but they are available separately.
  • 8650 Chromemoly Steel
  • 29 Percent Stronger Than Pro Magnum
  • Redesigned Steel Stud Mount Rocker
  • Reduced Weight And Greater Strength
  • Increased High RPM Stability
  • Black Oxide Exterior Finish
  • Increased Retainer And Valve Spring Clearances
  • Lifetime Warranty

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
2016 Chevrolet Cheyenne
2009-2012 Chevrolet Colorado
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
2015-2016 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

Additional Information:

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We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

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