

Comp Cams Cam & Lifter Kit, LS1 XR259HR-12

COMP Cams manufactures truly superior hydraulic and solid flat tappet, hydraulic and mechanical roller, and overhead camshafts for everything from OE replacement to full race, designed and manufactured using cutting-edge technology and the finest engineering in the industry. Whether your engine is naturally aspirated, or you run nitrous, or a supercharger or turbo, our cams make more horsepower than any other. Looking for that ultimate hard-hitting muscle car idle? Check out our aggressive new Thumpr Cams. Match our camshafts up with our competition-grade lifters, valve springs, timing sets, and other supporting components, and you'll experience the ultimate in race-winning reliability.
Ever since its introduction, GM's LSX/Gen III engine has quickly become the ''preferred choice'' among many engine builders and performance enthusiasts. Right from the factory, the GM LSX/Gen III engine boasts a surprisingly efficient induction design, reduced weight and impressive power output. As the leading developer of high performance LSX/Gen III valve train technology, Comp Cams has engineered a full line of products proven to release the incredible horsepower and torque hidden inside while never sacrificing ever-critical reliability.
Specifications
Features:
- Newest and quickest lobe profiles; provide a terrific increase in performance
- Tuned for use in EFI applications where extra air flow signal through the carburetor is not required (feature wider lobe separation without loss of responsiveness)
- Work well with aftermarket cylinder heads & feature high lift
Vehicle Fitments:
| Year | Make | Model | Submodel | 
|---|---|---|---|
| 2001 - 2004 | Avanti | II | Base | 
| 2008 - 2009 | Buick | LaCrosse | CXL, CX, Super | 
| 2008 | Buick | LaCrosse | CXS | 
| 2004 - 2007 | Buick | Rainier | CXL | 
| 2004 - 2005 | Buick | Rainier | CXL Plus | 
| 2012 | Cadillac | CTS | 3.6L, 3.0L | 
| 2011 - 2014 | Cadillac | CTS | Coupe | 
| 2010 - 2015 | Cadillac | CTS | Performance | 
| 2009 - 2015 | Cadillac | CTS | Premium, Luxury | 
| 2013 | Cadillac | CTS | V Luxury | 
| 2004 - 2015 | Cadillac | CTS | V, Base | 
| 2014 - 2015 | Cadillac | CTS | Vsport Premium, Vsport | 
| 2002 - 2014 | Cadillac | Escalade | Base | 
| 2009 - 2013 | Cadillac | Escalade | Hybrid | 
| 2010 - 2013 | Cadillac | Escalade | Hybrid Platinum | 
| 2008 - 2014 | Cadillac | Escalade | Platinum | 
| 2011 - 2014 | Cadillac | Escalade | Premium, Luxury | 
| 2012 | Cadillac | Escalade | Special Edition | 
| 2007 - 2014 | Cadillac | Escalade ESV | Base | 
| 2008 - 2014 | Cadillac | Escalade ESV | Platinum | 
| 2011 - 2014 | Cadillac | Escalade ESV | Premium, Luxury | 
| 2012 | Cadillac | Escalade ESV | Special Edition | 
| 2007 - 2013 | Cadillac | Escalade EXT | Base | 
| 2011 - 2013 | Cadillac | Escalade EXT | Premium, Luxury | 
| 2007 - 2013 | Chevrolet | Avalanche | Base | 
| 2013 | Chevrolet | Avalanche | Black Diamond LT, Black Diamond LTZ, Black Diamond LS | 
| 2007 - 2012 | Chevrolet | Avalanche | LS, LT, LTZ | 
| 2002 - 2006 | Chevrolet | Avalanche 1500 | LT, LS, Z71, Base | 
| 2002 - 2003 | Chevrolet | Avalanche 1500 | On Road Edition, North Face | 
| 2003 | Chevrolet | Avalanche 1500 | WBH | 
| 2004 - 2006 | Chevrolet | Avalanche 1500 | Z66 | 
| 2011 - 2012 | Chevrolet | Camaro | 2SS, 1LT, 1SS | 
| 2010 - 2015 | Chevrolet | Camaro | LS, SS, LT | 
| 1998 | Chevrolet | Camaro | Lujo | 
| 2014 - 2015 | Chevrolet | Camaro | Z/28 | 
| 1998 - 2002 | Chevrolet | Camaro | Z28, Z28 SS, Base | 
| 2012 - 2015 | Chevrolet | Camaro | ZL1 | 
| 2011 - 2017 | Chevrolet | Caprice | PPV | 
| 2009 - 2012 | Chevrolet | Colorado | LT, WT, Base | 
| 2008 | Chevrolet | Corvette | 427 Limited Edition Z06 | 
| 2013 | Chevrolet | Corvette | 427, LT | 
| 2003 | Chevrolet | Corvette | 50th Anniversary Edition, 50th Anniversary Edition Pace Car | 
| 1997 - 2013 | Chevrolet | Corvette | Base | 
| 2010 - 2013 | Chevrolet | Corvette | Grand Sport | 
| 1998 | Chevrolet | Corvette | Indianapolis 500 Pace Car | 
| 2001 - 2013 | Chevrolet | Corvette | Z06 | 
| 2011 | Chevrolet | Corvette | Z06 Carbon | 
| 2009 - 2013 | Chevrolet | Corvette | ZR1 | 
| 2003 - 2014 | Chevrolet | Express 1500 | Base, LS | 
| 2006 - 2014 | Chevrolet | Express 1500 | LT | 
| 2003 - 2019 | Chevrolet | Express 2500 | Base, LS | 
| 2010 - 2019 | Chevrolet | Express 2500 | LT | 
| 2010 - 2019 | Chevrolet | Express 3500 | Base, LT, LS | 
| 2008 | Chevrolet | Impala | 50th Anniversary Edition | 
| 2006 - 2009 | Chevrolet | Impala | LS, Police, LT, LTZ, SS | 
| 2016 - 2017 | Chevrolet | LCF 3500 | Base | 
| 2006 | Chevrolet | Monte Carlo | LTZ | 
| 2006 - 2007 | Chevrolet | Monte Carlo | SS, LT, LS | 
| 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, Hybrid, SS, WT, LS | 
| 1999 - 2000 | Chevrolet | Silverado 2500 | Base, LT, LS | 
| 2015 - 2019 | Chevrolet | Silverado 2500 HD | High Country | 
| 2010 - 2019 | Chevrolet | Silverado 2500 HD | WT, LT, LTZ | 
| 2015 - 2019 | Chevrolet | Silverado 3500 HD | High Country | 
| 2010 - 2019 | Chevrolet | Silverado 3500 HD | LTZ, LT, WT | 
| 2014 - 2017 | Chevrolet | SS | Base | 
| 2003 - 2006 | 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 | LS, LT | 
| 2016 - 2019 | Chevrolet | Suburban 3500 HD | LS, LT | 
| 2000 - 2012 | Chevrolet | Tahoe | Base | 
| 2008 - 2013 | Chevrolet | Tahoe | Hybrid | 
| 2000 | Chevrolet | Tahoe | Limited | 
| 2000 - 2014 | Chevrolet | Tahoe | LT, LS | 
| 2007 - 2014 | Chevrolet | Tahoe | LTZ | 
| 2012 - 2014 | Chevrolet | Tahoe | SSV, PPV | 
| 2000 - 2009 | Chevrolet | Tahoe | Z71 | 
| 2006 - 2007 | Chevrolet | Trailblazer | B, A, LS | 
| 2006 - 2008 | Chevrolet | Trailblazer | Base, SS, LT | 
| 2003 - 2006 | Chevrolet | Trailblazer EXT | LS, LT | 
| 2003 - 2004 | Chevrolet | Trailblazer EXT | North Face | 
| 2009 - 2012 | GMC | Canyon | SLE, Base, WT, SLT | 
| 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 - 2014 | GMC | Savana 1500 | Base | 
| 2006 - 2014 | GMC | Savana 1500 | LS, LT | 
| 2009 - 2013 | GMC | Savana 1500 | SL | 
| 2003 - 2013 | GMC | Savana 1500 | SLE | 
| 2003 - 2019 | GMC | Savana 2500 | Base | 
| 2010 - 2019 | GMC | Savana 2500 | LS, LT | 
| 2010 - 2013 | GMC | Savana 2500 | SL | 
| 2003 - 2013 | GMC | Savana 2500 | SLE | 
| 2010 - 2019 | GMC | Savana 3500 | LT, LS, Base | 
| 2010 - 2013 | GMC | Savana 3500 | SLE, SL | 
| 2002 - 2005 | GMC | Sierra 1500 | Base | 
| 2001 | GMC | Sierra 1500 | C3 | 
| 2002 - 2013 | GMC | Sierra 1500 | Denali, WT | 
| 2002 | GMC | Sierra 1500 | HT | 
| 2005 - 2013 | GMC | Sierra 1500 | Hybrid | 
| 1999 - 2013 | GMC | Sierra 1500 | SLE, SL, SLT | 
| 2010 - 2013 | GMC | Sierra 1500 | XFE | 
| 2007 | GMC | Sierra 1500 Classic | SL, Hybrid, WT, Denali, SLE, SLT | 
| 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 | 
| 2008 - 2013 | GMC | Yukon | Hybrid | 
| 2006 | GMC | Yukon | SL | 
| 2000 - 2014 | GMC | Yukon | SLT, Denali, SLE | 
| 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 - 2009 | Hummer | H2 | Adventure, Luxury | 
| 2004 - 2009 | Hummer | H2 | Base | 
| 2007 | Hummer | H2 | Special Edition | 
| 2008 - 2010 | Hummer | H3 | Alpha, Adventure, Luxury, Base | 
| 2009 | Hummer | H3 | Championship Series | 
| 2008 - 2009 | Hummer | H3 | X | 
| 2010 | Hummer | H3T | Adventure | 
| 2009 - 2010 | Hummer | H3T | Base, Alpha | 
| 2003 - 2005 | Isuzu | Ascender | Limited | 
| 2003 - 2006 | Isuzu | Ascender | LS, Base | 
| 2004 - 2005 | Isuzu | Ascender | S | 
| 1998 - 2002 | Pontiac | Firebird | Base, Trans Am, Formula | 
| 2008 - 2009 | Pontiac | G8 | Base, GT | 
| 2009 | Pontiac | G8 | GXP | 
| 2005 - 2007 | Pontiac | Grand Prix | GT | 
| 2005 | Pontiac | Grand Prix | GTP | 
| 2005 - 2008 | Pontiac | Grand Prix | GXP, Base | 
| 2004 - 2006 | Pontiac | GTO | Base | 
| 2006 - 2009 | Saab | 9-7x | 4.2i, 5.3i | 
| 2008 - 2009 | Saab | 9-7x | Aero | 
| 2005 | Saab | 9-7x | Arc, Linear | 


























