The Texas Speed 6.0L NSR RV Camshaft is the 6.0L-specific version of the Texas Speed RV cam, built to give cathedral-port LS truck engines more low-end torque and a stronger midrange without any valvetrain upgrades. It is part of the NSR (No Springs Required) family, so it runs on the factory LS valve springs and OEM-length pushrods, and it is aimed at towing, cruising and stronger street use rather than high-rpm power.
The grind measures 212/220 duration at .050", .495" lift and a 110 degree lobe separation angle with a 107 degree intake centerline (110 plus 3). Texas Speed estimates a 30 to 50 horsepower gain and dyno tested the cam on a 370 cubic inch LQ4-based engine with 10:1 compression, stock 317 heads and a TBSS/NNBS intake manifold, where it delivered its gains in the rpm range truck owners use most. The mild overlap keeps the idle smooth, and the cam is stock converter friendly with 4L60E and 4L80E transmissions. A custom tune is required after installation.
Specifications
- Duration at .050": 212/220
- Valve lift: .495"/.495"
- Lobe separation angle: 110 degrees
- Intake centerline: 107 degrees (110 + 3)
- Engines: 6.0L LS truck engines with cathedral-port heads
- Valve springs: No upgrade required, designed for factory LS valve springs
- Pushrods: Works with OEM-length pushrods
- Torque converter: Stock converter friendly, 4L60E and 4L80E
- Powerband: Low-end torque with strong midrange pull
- Estimated gain: 30 to 50 hp
- Dyno test engine: 370 cid LQ4-based 6.0L, 10:1 compression, stock 317 heads, TBSS/NNBS intake manifold
- Idle: Mild overlap, smooth idle
- Vehicle usage: Daily driver / friendly
- Chop level: Mild chop
Vehicle Applications
Engine application per Texas Speed: 6.0L Gen III and Gen IV LS truck engines with cathedral-port cylinder heads. The vehicle list published by Texas Speed for this part number has been narrowed to model years in which a cathedral-port 6.0L was offered; several of these models were also sold with 4.8L, 5.3L or later 6.2L engines, so confirm your engine and head type before ordering.
Chevrolet Corvette
- 2005 Chevrolet Corvette
- 2006 Chevrolet Corvette
- 2007 Chevrolet Corvette
Cadillac CTS-V
- 2006 Cadillac CTS-V
- 2007 Cadillac CTS-V
Cadillac Escalade
- 2002 Cadillac Escalade
- 2003 Cadillac Escalade
- 2004 Cadillac Escalade
- 2005 Cadillac Escalade
- 2006 Cadillac Escalade
- 2009 Cadillac Escalade
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
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
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
Chevrolet Suburban 2500
- 2000 Chevrolet Suburban 2500
- 2001 Chevrolet Suburban 2500
- 2002 Chevrolet Suburban 2500
- 2003 Chevrolet Suburban 2500
- 2004 Chevrolet Suburban 2500
- 2005 Chevrolet Suburban 2500
- 2006 Chevrolet Suburban 2500
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
Chevrolet Trailblazer SS
- 2006 Chevrolet Trailblazer SS
- 2007 Chevrolet Trailblazer SS
- 2008 Chevrolet Trailblazer SS
- 2009 Chevrolet Trailblazer SS
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
GMC Yukon XL 2500
- 2000 GMC Yukon XL 2500
- 2001 GMC Yukon XL 2500
- 2002 GMC Yukon XL 2500
- 2003 GMC Yukon XL 2500
- 2004 GMC Yukon XL 2500
- 2005 GMC Yukon XL 2500
- 2006 GMC Yukon XL 2500
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 engines does the Texas Speed 6.0L NSR RV cam fit?
Texas Speed built the TSP-NSR-RV-6.0 for 6.0L LS truck engines with cathedral-port heads, such as the LQ4 and LQ9 in 1999 to 2007 GM trucks and SUVs. Texas Speed's finder also lists the 6.0L LS2 cars of 2005 to 2007. For 4.8L and 5.3L engines, Texas Speed sells the TSP-NSR-RV-5.3.
Do I need valve springs or pushrods with the 6.0L NSR RV camshaft?
No. NSR means No Springs Required. Texas Speed designed the cam for the factory LS valve springs and OEM-length pushrods, so no valvetrain upgrades are needed.
Can I keep my stock torque converter with the 6.0L RV cam?
Yes. Texas Speed calls the cam stock converter friendly and lists it as ideal for factory 4L60E and 4L80E transmissions, so no stall converter is needed.
How much power does the 6.0L NSR RV cam add?
Texas Speed estimates a 30 to 50 horsepower gain. The cam was dyno tested on a 370 cubic inch LQ4-based engine with 10:1 compression, stock 317 heads and a TBSS/NNBS intake, with the gains concentrated in the rpm range truck owners use most.
How does the 6.0L RV cam differ from the 4.8L/5.3L RV cam?
The 6.0L version is 212/220 duration while the 4.8L/5.3L version is 208/216. Both use .495" lift on a 110 LSA with a 107 ICL, run stock springs, pushrods and converter, and are built for low-end towing torque.
Is a tune required after installing the 6.0L NSR RV camshaft?
Yes. A custom tune is required after any camshaft swap so the engine idles and runs correctly with the new profile.
