Convert your LS1 engine to an adjustable valvetrain with the Ultra Pro Magnum Rocker Kit. Our kit includes 1.8 Ultra Pro Magnum Rockers, guideplates, 3/8" studs, adjusting nuts and set screws for a complete adjustable valvetrain solution.
For LS1/LS2/LS6/4.8L, 5.3L, and Pre '07 6.0L Truck Engines and Other Cathedral-Port Head Equipped LS Applications. Includes Full Set of (16) Stud-Mount Rockers (with Poly Locks), 3/8" Studs and Raised Guide Plates for 5/16" Pushrods. Increase Strength Over Stock, While Increasing Lift without Swapping Cams.
For LS1/LS2/LS6/4.8L, 5.3L, and Pre '07 6.0L Truck Engines and Other Cathedral-Port Head Equipped LS Applications. Includes Full Set of (16) Stud-Mount Rockers (with Poly Locks), 3/8" Studs and Raised Guide Plates for 5/16" Pushrods. Increase Strength Over Stock, While Increasing Lift without Swapping Cams.
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 |
| 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 |
| Attributes | |
| Amazon ASIN | B005JUX0JO |
| ASIN | B005JUX0JO |
| C.A.R.B. E.O. Number | N/A |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? | Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exempt for On-Road Vehicles? | No |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? | Yes, but must be a race/competition only vehicle. |
| C.A.R.B. Exemption Reason | N/A |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Country of Origin (Primary) | US |
| Emission Code | Legal US |
| Engine Family | LS1/LS2/LS6, LS1/LS2/LS6 |
| Engine Make/Size | GM LS1/LS6 |
| Harmonized Tariff Code (Schedule B) | 8409914000 |
| Hazardous Material Code | N |
| Life Cycle Status Code | Available to Order |
| Maximum Valve Spring Open Pressure | 850, 850 |
| NAFTA Preference Criterion Code | B |
| Ratio | 1.8 |
| Rocker Arm Material | 8650 Chromemoly Steel, 8650 Chromemoly Steel |
| Rocker Arm Ratio | 1.8, 1.8 |
| Rocker Arm Series | Ultra Pro Magnum, Ultra Pro Magnum |
| Rocker Stud Diameter | 3/8, 3/8 |
| SDR Required Flag | N |
| SDS Sheet Number | N/A |
| Stud Size | 3/8 |
| Warranty Time | 12 |
| GTIN | 00036584213154 |