Comp Cams Rocker Arm, GM LS1 1.8 3/8 Ultra Pro Mag

SKU: 0HTZ6 | MPN:  1675-1
Usually Ships in 10-14 Days
Sale price$56.16 USD

New LS-Specific Ultra Pro Magnum Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift Without The Need To Swap Cams

As LS engines continue to grow in popularity, COMP Cams® has expanded its line of rocker arms to build components specific to LS applications. New Ultra Pro MagnumT Rockers are made from investment-cast 8650 chromemoly steel, utilize upgraded trunnions 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 trunnion 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® LS Ultra Pro MangumT 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.

  • Increased (1.8) ratio & stiffness make rockers a great option for increasing lift w/o changing cams
  • Investment-cast 8650 chromemoly steel body creates components stronger, stiffer & more durable than stock 
  • Increased stiffness, upgraded trunnion & roller wheel make rockers  perfect for aftermarket valve springs
  • Two designs available - bolt-down using stock rocker stands & and stud-mount for adjustable valve trains
  • Available in individual sets or  kits for  LS1, LS2, LS3, LS6 & LS-based truck applications 


Vehicle Fitments:

Year Make Model Submodel
2001 - 2004 Avanti II Base
2008 - 2009 Buick LaCrosse CXL, Super, CX
2008 Buick LaCrosse CXS
2004 - 2007 Buick Rainier CXL
2004 - 2005 Buick Rainier CXL Plus
2004 - 2005 Cadillac CTS Base, V
2002 - 2013 Cadillac Escalade Base
2010 - 2013 Cadillac Escalade Hybrid Platinum
2009 - 2013 Cadillac Escalade Hybrid, Platinum
2011 - 2013 Cadillac Escalade Premium, Luxury
2012 Cadillac Escalade Special Edition
2007 - 2013 Chevrolet Avalanche Base
2013 Chevrolet Avalanche Black Diamond LT, Black Diamond LTZ, Black Diamond LS
2007 - 2012 Chevrolet Avalanche LT, LTZ, LS
2002 - 2006 Chevrolet Avalanche 1500 Base, LS, Z71, LT
2002 - 2003 Chevrolet Avalanche 1500 North Face, On Road Edition
2003 Chevrolet Avalanche 1500 WBH
2004 - 2006 Chevrolet Avalanche 1500 Z66
1998 - 2002 Chevrolet Camaro Base, Z28, Z28 SS
1998 Chevrolet Camaro Lujo
2009 - 2012 Chevrolet Colorado LT, Base, WT
2003 Chevrolet Corvette 50th Anniversary Edition, 50th Anniversary Edition Pace Car
1997 - 2004 Chevrolet Corvette Base
1998 Chevrolet Corvette Indianapolis 500 Pace Car
2001 - 2004 Chevrolet Corvette Z06
2003 - 2007 Chevrolet Express 1500 Base, LS
2006 - 2007 Chevrolet Express 1500 LT
2003 - 2019 Chevrolet Express 2500 Base, LS
2010 - 2019 Chevrolet Express 2500 LT
2010 - 2019 Chevrolet Express 3500 Base, LS, LT
2008 Chevrolet Impala 50th Anniversary Edition
2006 - 2009 Chevrolet Impala SS, LTZ, Police, LT, LS
2016 - 2017 Chevrolet LCF 3500 Base
2006 - 2007 Chevrolet Monte Carlo LS, LT, SS
2006 Chevrolet Monte Carlo LTZ
2002 Chevrolet Silverado 1500 Custom
2004 - 2013 Chevrolet Silverado 1500 Hybrid
1999 - 2013 Chevrolet Silverado 1500 LS, Base, LT
2007 - 2013 Chevrolet Silverado 1500 LTZ
2003 - 2006 Chevrolet Silverado 1500 SS
2002 - 2013 Chevrolet Silverado 1500 WT
2010 - 2013 Chevrolet Silverado 1500 XFE
2004 Chevrolet Silverado 1500 Z71
2007 Chevrolet Silverado 1500 Classic LT, SS, Hybrid, LS, WT
1999 - 2000 Chevrolet Silverado 2500 LT, Base, LS
2015 - 2019 Chevrolet Silverado 2500 HD High Country
2010 - 2019 Chevrolet Silverado 2500 HD WT, LTZ, LT
2015 - 2019 Chevrolet Silverado 3500 HD High Country
2010 - 2019 Chevrolet Silverado 3500 HD LTZ, LT, WT
2003 - 2004 Chevrolet SSR Base
2000 - 2012 Chevrolet Suburban 1500 Base
2000 - 2014 Chevrolet Suburban 1500 LT, LS
2006 - 2014 Chevrolet Suburban 1500 LTZ
2004 - 2007 Chevrolet Suburban 1500 Z71
2010 - 2013 Chevrolet Suburban 2500 LT, LS
2016 - 2019 Chevrolet Suburban 3500 HD LT, LS
2000 - 2012 Chevrolet Tahoe Base
2008 - 2013 Chevrolet Tahoe Hybrid
2000 Chevrolet Tahoe Limited
2000 - 2014 Chevrolet Tahoe LS, LT
2007 - 2014 Chevrolet Tahoe LTZ
2012 - 2014 Chevrolet Tahoe PPV, SSV
2000 - 2009 Chevrolet Tahoe Z71
2006 - 2007 Chevrolet Trailblazer A, B, LS
2006 - 2008 Chevrolet Trailblazer Base, LT, SS
2003 - 2006 Chevrolet Trailblazer EXT LS, LT
2003 - 2004 Chevrolet Trailblazer EXT North Face
2009 - 2012 GMC Canyon SLT, Base, SLE, WT
2005 - 2009 GMC Envoy SLT, Denali, SLE
2005 - 2006 GMC Envoy XL Denali
2003 - 2006 GMC Envoy XL SLT, SLE
2004 - 2005 GMC Envoy XUV SLE, SLT
2003 - 2007 GMC Savana 1500 Base
2006 - 2007 GMC Savana 1500 LT, LS
2003 - 2005 GMC Savana 1500 SLE
2003 - 2019 GMC Savana 2500 Base
2010 - 2019 GMC Savana 2500 LT, LS
2010 - 2013 GMC Savana 2500 SL
2003 - 2013 GMC Savana 2500 SLE
2010 - 2019 GMC Savana 3500 LS, LT, Base
2010 - 2013 GMC Savana 3500 SLE, SL
2002 - 2005 GMC Sierra 1500 Base
2001 GMC Sierra 1500 C3
2002 GMC Sierra 1500 HT
2005 - 2013 GMC Sierra 1500 Hybrid
1999 - 2013 GMC Sierra 1500 SLE, SL, SLT
2002 - 2013 GMC Sierra 1500 WT, Denali
2010 - 2013 GMC Sierra 1500 XFE
2007 GMC Sierra 1500 Classic Denali, Hybrid, SL, SLT, SLE, WT
1999 - 2000 GMC Sierra 2500 SLT, SL, SLE
2015 - 2019 GMC Sierra 2500 HD Base
2011 - 2019 GMC Sierra 2500 HD Denali
2010 - 2019 GMC Sierra 2500 HD SLE, SLT
2010 - 2014 GMC Sierra 2500 HD WT
2015 - 2019 GMC Sierra 3500 HD Base
2011 - 2019 GMC Sierra 3500 HD Denali
2010 - 2019 GMC Sierra 3500 HD SLE, SLT
2010 - 2014 GMC Sierra 3500 HD WT
2007 - 2012 GMC Yukon Base
2010 - 2013 GMC Yukon Denali Hybrid
2000 - 2014 GMC Yukon Denali, SLT, SLE
2008 - 2013 GMC Yukon Hybrid
2006 GMC Yukon SL
2001 - 2014 GMC Yukon XL 1500 Denali
2006 GMC Yukon XL 1500 SL
2000 - 2014 GMC Yukon XL 1500 SLT, SLE
2010 - 2013 GMC Yukon XL 2500 SLE, SLT
2007 Hummer H2 Adventure, Special Edition, Luxury
2004 - 2007 Hummer H2 Base
2008 - 2010 Hummer H3 Base, Adventure, Alpha, Luxury
2009 Hummer H3 Championship Series
2008 - 2009 Hummer H3 X
2010 Hummer H3T Adventure
2009 - 2010 Hummer H3T Alpha, Base
2003 - 2006 Isuzu Ascender Base, LS
2003 - 2005 Isuzu Ascender Limited
2004 - 2005 Isuzu Ascender S
1998 - 2002 Pontiac Firebird Formula, Base, Trans Am
2005 - 2008 Pontiac Grand Prix Base, GXP
2005 - 2007 Pontiac Grand Prix GT
2005 Pontiac Grand Prix GTP
2004 Pontiac GTO Base
2006 - 2009 Saab 9-7x 5.3i, 4.2i
2008 - 2009 Saab 9-7x Aero
2005 Saab 9-7x Linear, Arc

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