COMP Cams 54-426-11 XFI (TM) Camshaft
Feature Wider Lobe Separations For Decreased Overlap Yielding A More Efficient Combustion Process Deliver Faster Valve Openings And Closings While Maintaining Complete Valve Train Control This Results In Dramatic Improvement In Performance And Durability Limited 1 Year Warranty
Specifications
Engine Compatibility - GM LS Gen III/IV Three-Bolt
Recommended Use - Mild Street Performance To Mild Race
Type - Hydraulic Roller
RPM - High - 6800
RPM - Low - 1800
Intake Duration At 0.050 Inch Lift (DEG) - 222 Degree
Exhaust Duration At 0.050 Inch Lift (DEG) - 224 Degree
Advertised Intake Duration (DEG) - 275 Degree
Advertised Exhaust Duration (DEG) - 277 Degree
Intake Valve Lift (IN) - 0.566 Inch
Exhaust Valve Lift (IN) - 0.568 Inch
Lobe Separation Angle (DEG) - 112 Degree
Intake Centerline Angle (DEG) - 110 Degree
Computer-Controlled Compatible - No
Grind Number - XR275HR
The new XFI™ (Xtreme Fuel Injection) cams feature wider lobe separations for decreased overlap yielding a more efficient combustion process. These cams are specifically engineered to work with fuel injected Engines. XFI™ cams deliver faster Valve openings and closings while maintaining complete Valve train control. This results in dramatic improvement in performance and durability. Electronic fuel injected Engines have very different Camshaft requirements from those of carbureted Engines. Carbureted Engines require a strong signal at the carb booster to draw the correct fuel mixture into the combustion chamber. Since that excess flow is not required with EFI engines Camshaft lobe profiles can be manipulated for increased performance. The XFI™ Camshafts were designed to work in conjunction with recent Valve train technology advancements including COMP's super clean "Beehive" Valve springs and increased ratio Pro Magnum rocker arms. Additionally the XFI™ Camshafts take advantage of the high velocity EFI style Cylinder head intake ports intake manifolds and combustion chamber designs Stock Valve train components should not be used with the XFI™ Cams.
This Fits
| Year | Make | Model |
|---|---|---|
| 2004-2007 | Buick | Rainier |
| 2006-2007 | Cadillac | CTS |
| 2002-2006 | Cadillac | Escalade |
| 2003-2006 | Cadillac | Escalade ESV |
| 2002-2006 | Cadillac | Escalade EXT |
| 2002-2006 | Chevrolet | Avalanche 1500 |
| 1998-2002 | Chevrolet | Camaro |
| 2010-2012 | Chevrolet | Colorado |
| 1997-2013 | Chevrolet | Corvette |
| 2003-2007 | Chevrolet | Express 1500 |
| 2003-2007 | Chevrolet | Express 2500 |
| 2003-2007 | Chevrolet | Express 3500 |
| 1999-2009 | Chevrolet | Silverado 1500 |
| 2007-2007 | Chevrolet | Silverado 1500 Classic |
| 2001-2003 | Chevrolet | Silverado 1500 HD |
| 2005-2006 | Chevrolet | Silverado 1500 HD |
| 2007-2007 | Chevrolet | Silverado 1500 HD Classic |
| 1999-2004 | Chevrolet | Silverado 2500 |
| 2001-2007 | Chevrolet | Silverado 2500 HD |
| 2001-2006 | Chevrolet | Silverado 3500 |
| 2007-2007 | Chevrolet | Silverado 3500 Classic |
| 2003-2003 | Chevrolet | SSR |
| 2005-2006 | Chevrolet | SSR |
| 2000-2006 | Chevrolet | Suburban 1500 |
| 2000-2006 | Chevrolet | Suburban 2500 |
| 2000-2006 | Chevrolet | Tahoe |
| 2006-2009 | Chevrolet | Trailblazer |
| 2003-2006 | Chevrolet | Trailblazer EXT |
| 2010-2012 | GMC | Canyon |
| 2005-2009 | GMC | Envoy |
| 2003-2006 | GMC | Envoy XL |
| 2004-2005 | GMC | Envoy XUV |
| 2003-2007 | GMC | Savana 1500 |
| 2003-2007 | Hummer | H2 |
| 2003-2006 | Isuzu | Ascender |
| 2004-2006 | Pontiac | GTO |
| 2005-2009 | Saab | 9-7x |
