The Texas Speed 530HP Cathedral Heads & Cam Package is the most aggressive of the Texas Speed pre-configured cathedral-port combinations for 5.7L and 6.0L LS engines, with a horsepower target of 525 to 550. It pairs the Texas Speed Stage 4 Cathedral Tsunami camshaft with PRC as-cast 225cc LS1/LS2 cylinder heads and a set of Texas Speed 7.475" hardened chromoly pushrods.
The Tsunami measures 235/240 duration at .050", .629"/.615" lift and 111 LSA, and Texas Speed describes its idle as very aggressive with substantial gains across the rpm range. The PRC heads have 225cc intake runners, 62cc combustion chambers and premium valves and seats, and are assembled with the Texas Speed .660" spring kit and titanium retainers. Texas Speed recommends a 3600+ rpm stall converter for automatics and 3.73 or 4.10 gears for manuals. A Heads & Camshaft Bolt Gasket Kit is required to install the package and tuning is required afterward.
Specifications
- Engines: 5.7L and 6.0L cathedral-port LS
- Camshaft: Texas Speed Stage 4 Cathedral Tsunami (TSP-TsunamiV2)
- Camshaft specs: 235/240 duration at .050", .629"/.615" lift, 111 LSA
- Cylinder heads: PRC as-cast LS1/LS2 cathedral-port, 225cc intake runners, 62cc chambers, premium valves and seats
- Valve springs: Texas Speed .660" spring kit with titanium retainers
- Pushrods: Texas Speed 5/16" .080" wall hardened chromoly, 7.475", set of 16
- Horsepower reported by Texas Speed: 525 to 550 hp depending on intake and exhaust
- Torque converter: 3600+ rpm stall recommended for automatics
- Rear gears: 3.73 or 4.10 preferred for manual vehicles
- Idle: Very aggressive
- Also required: Heads & Camshaft Bolt Gasket Kit
- Tuning: Required after installation
Kit Includes
- Texas Speed Tsunami Camshaft (TSP-TsunamiV2)
- PRC as-cast 225cc LS1/LS2 cathedral-port cylinder heads with TSP .660" spring kit and titanium retainers (PRC-SSAsCast225)
- Texas Speed 7.475" chromoly pushrods, set of 16 (TSP-7475-16)
Note: A Heads & Camshaft Bolt Gasket Kit is required to complete the installation and is sold separately.
Note: A 3600+ rpm stall torque converter is recommended for automatic transmission vehicles.
Note: A custom tune is required after installation.
Vehicle Applications
Engine families covered per Texas Speed: 5.7L and 6.0L cathedral-port LS (Gen III LS1/LS6 and 6.0L, Gen IV LS2 and 6.0L truck engines).
Chevrolet Camaro
- 1998 Chevrolet Camaro
- 1999 Chevrolet Camaro
- 2000 Chevrolet Camaro
- 2001 Chevrolet Camaro
- 2002 Chevrolet Camaro
Chevrolet Corvette
- 1997 Chevrolet Corvette
- 1998 Chevrolet Corvette
- 1999 Chevrolet Corvette
- 2000 Chevrolet Corvette
- 2001 Chevrolet Corvette
- 2002 Chevrolet Corvette
- 2003 Chevrolet Corvette
- 2004 Chevrolet Corvette
- 2005 Chevrolet Corvette
- 2006 Chevrolet Corvette
- 2007 Chevrolet Corvette
Pontiac Firebird
- 1998 Pontiac Firebird
- 1999 Pontiac Firebird
- 2000 Pontiac Firebird
- 2001 Pontiac Firebird
- 2002 Pontiac Firebird
Pontiac GTO
- 2004 Pontiac GTO
- 2005 Pontiac GTO
- 2006 Pontiac GTO
GMC Sierra 1500
- 1999 GMC Sierra 1500
- 2000 GMC Sierra 1500
- 2001 GMC Sierra 1500
- 2002 GMC Sierra 1500
- 2003 GMC Sierra 1500
- 2004 GMC Sierra 1500
- 2005 GMC Sierra 1500
- 2006 GMC Sierra 1500
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
GMC Sierra 2500
- 2001 GMC Sierra 2500
- 2002 GMC Sierra 2500
- 2003 GMC Sierra 2500
- 2004 GMC Sierra 2500
- 2005 GMC Sierra 2500
- 2006 GMC Sierra 2500
- 2007 GMC Sierra 2500
GMC Sierra 3500
- 2001 GMC Sierra 3500
- 2002 GMC Sierra 3500
- 2003 GMC Sierra 3500
- 2004 GMC Sierra 3500
- 2005 GMC Sierra 3500
- 2006 GMC Sierra 3500
Chevrolet Silverado 1500
- 1999 Chevrolet Silverado 1500
- 2000 Chevrolet Silverado 1500
- 2001 Chevrolet Silverado 1500
- 2002 Chevrolet Silverado 1500
- 2003 Chevrolet Silverado 1500
- 2004 Chevrolet Silverado 1500
- 2005 Chevrolet Silverado 1500
- 2006 Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
Chevrolet Silverado 2500
- 1999 Chevrolet Silverado 2500
- 2000 Chevrolet Silverado 2500
- 2001 Chevrolet Silverado 2500
- 2002 Chevrolet Silverado 2500
- 2003 Chevrolet Silverado 2500
- 2004 Chevrolet Silverado 2500
- 2005 Chevrolet Silverado 2500
- 2006 Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 2500
Chevrolet Silverado 3500
- 2001 Chevrolet Silverado 3500
- 2002 Chevrolet Silverado 3500
- 2003 Chevrolet Silverado 3500
- 2004 Chevrolet Silverado 3500
- 2005 Chevrolet Silverado 3500
- 2006 Chevrolet Silverado 3500
- 2007 Chevrolet Silverado 3500
Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 2004 Chevrolet Suburban
- 2005 Chevrolet Suburban
- 2006 Chevrolet Suburban
- 2007 Chevrolet Suburban
- 2008 Chevrolet Suburban
- 2009 Chevrolet Suburban
- 2010 Chevrolet Suburban
- 2011 Chevrolet Suburban
- 2012 Chevrolet Suburban
- 2013 Chevrolet Suburban
- 2014 Chevrolet Suburban
Chevrolet Tahoe
- 2000 Chevrolet Tahoe
- 2001 Chevrolet Tahoe
- 2002 Chevrolet Tahoe
- 2003 Chevrolet Tahoe
- 2004 Chevrolet Tahoe
- 2005 Chevrolet Tahoe
- 2006 Chevrolet Tahoe
- 2007 Chevrolet Tahoe
- 2008 Chevrolet Tahoe
- 2009 Chevrolet Tahoe
- 2010 Chevrolet Tahoe
- 2011 Chevrolet Tahoe
- 2012 Chevrolet Tahoe
- 2013 Chevrolet Tahoe
- 2014 Chevrolet Tahoe
Pontiac Trans Am
- 1998 Pontiac Trans Am
- 1999 Pontiac Trans Am
- 2000 Pontiac Trans Am
- 2001 Pontiac Trans Am
- 2002 Pontiac Trans Am
GMC Yukon
- 1999 GMC Yukon
- 2000 GMC Yukon
- 2001 GMC Yukon
- 2002 GMC Yukon
- 2003 GMC Yukon
- 2004 GMC Yukon
- 2005 GMC Yukon
- 2006 GMC Yukon
- 2007 GMC Yukon
- 2008 GMC Yukon
- 2009 GMC Yukon
- 2010 GMC Yukon
- 2011 GMC Yukon
- 2012 GMC Yukon
- 2013 GMC Yukon
- 2014 GMC Yukon
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What is included in the Texas Speed 530HP cathedral heads and cam package?
The package includes the Texas Speed Tsunami camshaft, a pair of PRC as-cast 225cc LS1/LS2 cathedral-port cylinder heads with 62cc chambers assembled with the Texas Speed .660" spring kit and titanium retainers, and a set of 16 Texas Speed 7.475" hardened chromoly pushrods.
What are the Tsunami camshaft specs?
The Texas Speed Tsunami in this package is 235/240 duration at .050", .629" intake and .615" exhaust lift on a 111 degree lobe separation angle. Texas Speed describes the idle as very aggressive.
Which engines does the 530HP package fit?
Texas Speed lists the package for 5.7L and 6.0L cathedral-port LS engines, covering LS1 and LS6 cars such as the 1997 to 2007 Corvette, 1998 to 2002 Camaro and Firebird and 2004 to 2006 GTO, plus 6.0L cathedral-port trucks and SUVs in the vehicle list.
Do I need a torque converter with the Tsunami heads and cam package?
Texas Speed recommends a 3600+ rpm stall torque converter for automatic transmission vehicles to get the most from this package. Manual transmission vehicles should run 3.73 or 4.10 rear gears.
How much horsepower does the 530HP package make?
Texas Speed rates the combination at 525 to 550 horsepower on a 5.7L or 6.0L LS depending on supporting modifications such as the exhaust and intake manifold. Tuning and the rest of the build affect the result.
What else is needed to install this kit, and is tuning required?
A Heads & Camshaft Bolt Gasket Kit is required for installation, and a custom tune is required after the Tsunami cam and PRC heads are installed.
