LSRT Cathedral Port, 297LRx HR14
400+c.i., High RPM Range Applications
HYDRAULIC ROLLER-400+ci, high rpm applications with major modifications and cathedral port cylinder heads.
Lifter Type: Hydraulic Roller
Engine Family: GM LS Gen III/IV 8 Cyl. '97-Current Three-Bolt 4.8/5.3/5.7/6.0/6.2/7.0L Engines
Cam Family: LSRT Cathedral Port (For Large Displacement Only, 6.2L-7.4L)
| Specifications | Intake | Exhaust | |||||||||||||||||||
| RPM Range: | Valve Lash: | ||||||||||||||||||||
| Valve Timing: | Duration: | ||||||||||||||||||||
| Lobe Separation: | Duration @ .050" Lift: | ||||||||||||||||||||
| Intake Centerline: | Valve Lift: | ||||||||||||||||||||
| Lobe Lift: | |||||||||||||||||||||
| Valve Timing @ 0.006 Lift: | |||||||||||||||||||||
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Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001 - 2004 | Avanti | II | Base |
| 2008 | Buick | LaCrosse | CXS |
| 2008 - 2009 | Buick | LaCrosse | Super, CXL, CX |
| 2004 - 2007 | Buick | Rainier | CXL |
| 2004 - 2005 | Buick | Rainier | CXL Plus |
| 2012 | Cadillac | CTS | 3.6L, 3.0L |
| 2011 - 2014 | Cadillac | CTS | Coupe |
| 2009 - 2015 | Cadillac | CTS | Luxury, V, Base, Premium |
| 2010 - 2015 | Cadillac | CTS | Performance |
| 2013 | Cadillac | CTS | V Luxury |
| 2014 - 2015 | Cadillac | CTS | Vsport, Vsport Premium |
| 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 | Luxury, Premium |
| 2007 - 2013 | Chevrolet | Avalanche | Base |
| 2013 | Chevrolet | Avalanche | Black Diamond LT, Black Diamond LS, Black Diamond LTZ |
| 2007 - 2012 | Chevrolet | Avalanche | LTZ, LT, LS |
| 2002 - 2006 | Chevrolet | Avalanche 1500 | LS, Base, Z71, LT |
| 2002 - 2003 | Chevrolet | Avalanche 1500 | North Face, On Road Edition |
| 2003 | Chevrolet | Avalanche 1500 | WBH |
| 2004 - 2006 | Chevrolet | Avalanche 1500 | Z66 |
| 2011 - 2012 | Chevrolet | Camaro | 1SS, 2SS, 1LT |
| 2010 - 2015 | Chevrolet | Camaro | LS, LT, SS |
| 2014 - 2015 | Chevrolet | Camaro | Z/28 |
| 2012 - 2015 | Chevrolet | Camaro | ZL1 |
| 2011 - 2017 | Chevrolet | Caprice | PPV |
| 2009 - 2012 | Chevrolet | Colorado | WT, Base, LT |
| 2008 | Chevrolet | Corvette | 427 Limited Edition Z06 |
| 2010 - 2013 | Chevrolet | Corvette | Grand Sport |
| 2013 | Chevrolet | Corvette | LT, 427 |
| 2011 | Chevrolet | Corvette | Z06 Carbon |
| 2006 - 2013 | Chevrolet | Corvette | Z06, Base |
| 2009 - 2013 | Chevrolet | Corvette | ZR1 |
| 2003 - 2014 | Chevrolet | Express 1500 | Base, LS |
| 2006 - 2014 | Chevrolet | Express 1500 | LT |
| 2003 - 2019 | Chevrolet | Express 2500 | LS, Base |
| 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 | Chevrolet | Monte Carlo | LTZ |
| 2006 - 2007 | Chevrolet | Monte Carlo | SS, LT, LS |
| 1999 - 2013 | Chevrolet | Silverado 1500 | Base, LS, LT |
| 2002 | Chevrolet | Silverado 1500 | Custom |
| 2004 - 2013 | Chevrolet | Silverado 1500 | Hybrid |
| 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 | Hybrid, LT, SS, WT, LS |
| 1999 - 2000 | Chevrolet | Silverado 2500 | LT, LS, Base |
| 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 - 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 | 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 | LS, LT |
| 2007 - 2014 | Chevrolet | Tahoe | LTZ |
| 2012 - 2014 | Chevrolet | Tahoe | PPV, SSV |
| 2000 - 2009 | Chevrolet | Tahoe | Z71 |
| 2006 - 2007 | Chevrolet | Trailblazer | B, A, LS |
| 2006 - 2008 | Chevrolet | Trailblazer | SS, LT, Base |
| 2003 - 2006 | Chevrolet | Trailblazer EXT | LT, LS |
| 2003 - 2004 | Chevrolet | Trailblazer EXT | North Face |
| 2009 - 2012 | GMC | Canyon | WT, SLE, SLT, Base |
| 2005 - 2009 | GMC | Envoy | Denali, SLT, SLE |
| 2005 - 2006 | GMC | Envoy XL | Denali |
| 2003 - 2006 | GMC | Envoy XL | SLE, SLT |
| 2004 - 2005 | GMC | Envoy XUV | SLE, SLT |
| 2003 - 2014 | GMC | Savana 1500 | Base |
| 2006 - 2014 | GMC | Savana 1500 | LT, LS |
| 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 | Base, LS, LT |
| 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 | SL, SLT, SLE |
| 2002 - 2013 | GMC | Sierra 1500 | WT, Denali |
| 2010 - 2013 | GMC | Sierra 1500 | XFE |
| 2007 | GMC | Sierra 1500 Classic | Denali, SLE, SL, WT, Hybrid, SLT |
| 1999 - 2000 | GMC | Sierra 2500 | SL, SLT, SLE |
| 2015 - 2019 | GMC | Sierra 2500 HD | Base |
| 2011 - 2019 | GMC | Sierra 2500 HD | Denali |
| 2010 - 2019 | GMC | Sierra 2500 HD | SLT, SLE |
| 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 | SLT, SLE |
| 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 |
| 2004 - 2009 | Hummer | H2 | Base |
| 2007 - 2009 | Hummer | H2 | Luxury, Adventure |
| 2007 | Hummer | H2 | Special Edition |
| 2008 - 2010 | Hummer | H3 | Adventure, Alpha, Luxury, Base |
| 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 |
| 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 |
| 2006 - 2009 | Saab | 9-7x | 5.3i, 4.2i |
| 2008 - 2009 | Saab | 9-7x | Aero |
| 2005 | Saab | 9-7x | Linear, Arc |