The Texas Speed LS3 Turbo Camshaft is a rectangular-port LS grind for stock 6.0L and LS3 engines running a single or twin turbocharger system. Texas Speed designed the profile for turbo combinations that need more airflow, controlled exhaust energy and strong top-end power, with the goal of good boost response in high-horsepower street and race builds.
The 229/242 duration, .629"/.615" lift and 115 degree lobe separation angle give the cam a choppy idle while keeping drivability stable with the right supporting parts. Texas Speed requires PRC/TSP .660" dual valve springs and 5/16" pushrods with this camshaft and recommends a 2,800 rpm or higher stall converter for automatic cars.
Specifications
- Duration at .050": 229/242
- Valve lift: .629"/.615"
- Lobe separation angle: 115 degrees (+3 advance)
- Engines: Stock 6.0L and LS3 with rectangle-port cylinder heads
- Application: Turbocharged LS engines
- Required valve springs: PRC/TSP .660" dual valve springs
- Required pushrods: 5/16"
- Stall converter: 2,800 rpm or higher recommended
- Vehicle usage: Street performance, mid-range
- Chop level: Choppy
Vehicle Applications
Engine families covered per Texas Speed: stock 6.0L and LS3 rectangular-port LS engines equipped with a turbocharger system.
Chevrolet Camaro
- 2010 Chevrolet Camaro
- 2011 Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
- 2014 Chevrolet Camaro
- 2015 Chevrolet Camaro
Chevrolet Corvette
- 2008 Chevrolet Corvette
- 2009 Chevrolet Corvette
- 2010 Chevrolet Corvette
- 2011 Chevrolet Corvette
- 2012 Chevrolet Corvette
- 2013 Chevrolet Corvette
Pontiac G8
- 2008 Pontiac G8
- 2009 Pontiac G8
GMC Sierra 1500
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
GMC Sierra 2500
- 2007 GMC Sierra 2500
- 2009 GMC Sierra 2500
- 2010 GMC Sierra 2500
- 2011 GMC Sierra 2500
- 2012 GMC Sierra 2500
- 2013 GMC Sierra 2500
- 2014 GMC Sierra 2500
- 2015 GMC Sierra 2500
- 2016 GMC Sierra 2500
- 2017 GMC Sierra 2500
- 2018 GMC Sierra 2500
- 2019 GMC Sierra 2500
GMC Sierra 3500
- 2009 GMC Sierra 3500
- 2010 GMC Sierra 3500
- 2011 GMC Sierra 3500
- 2012 GMC Sierra 3500
- 2013 GMC Sierra 3500
- 2014 GMC Sierra 3500
- 2015 GMC Sierra 3500
- 2016 GMC Sierra 3500
- 2017 GMC Sierra 3500
- 2018 GMC Sierra 3500
- 2019 GMC Sierra 3500
Chevrolet Silverado 1500
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
Chevrolet Silverado 2500
- 2007 Chevrolet Silverado 2500
- 2008 Chevrolet Silverado 2500
- 2009 Chevrolet Silverado 2500
- 2010 Chevrolet Silverado 2500
- 2011 Chevrolet Silverado 2500
- 2012 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 2500
- 2014 Chevrolet Silverado 2500
- 2015 Chevrolet Silverado 2500
- 2016 Chevrolet Silverado 2500
- 2017 Chevrolet Silverado 2500
- 2018 Chevrolet Silverado 2500
- 2019 Chevrolet Silverado 2500
Chevrolet Silverado 3500
- 2007 Chevrolet Silverado 3500
- 2008 Chevrolet Silverado 3500
- 2009 Chevrolet Silverado 3500
- 2010 Chevrolet Silverado 3500
- 2011 Chevrolet Silverado 3500
- 2012 Chevrolet Silverado 3500
- 2013 Chevrolet Silverado 3500
- 2014 Chevrolet Silverado 3500
- 2015 Chevrolet Silverado 3500
- 2016 Chevrolet Silverado 3500
- 2017 Chevrolet Silverado 3500
- 2018 Chevrolet Silverado 3500
- 2019 Chevrolet Silverado 3500
Chevrolet SS
- 2014 Chevrolet SS
- 2015 Chevrolet SS
- 2016 Chevrolet SS
- 2017 Chevrolet SS
Chevrolet Suburban
- 2007 Chevrolet Suburban
- 2008 Chevrolet Suburban
- 2009 Chevrolet Suburban
- 2010 Chevrolet Suburban
- 2011 Chevrolet Suburban
- 2012 Chevrolet Suburban
- 2013 Chevrolet Suburban
- 2016 Chevrolet Suburban
- 2017 Chevrolet Suburban
- 2018 Chevrolet Suburban
- 2019 Chevrolet Suburban
Chevrolet Suburban 2500
- 2007 Chevrolet Suburban 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 LS3 Turbo Cam fit?
The LS3 Turbo Camshaft fits stock 6.0L and LS3 engines with rectangle-port cylinder heads that are equipped with a turbocharger system. It is not intended for cathedral-port heads or for supercharged combinations.
What valve springs are required with the LS3 Turbo cam?
Texas Speed requires PRC/TSP .660" dual valve springs and 5/16" pushrods with the LS3 Turbo Camshaft because of its .629" intake lift and turbo duty cycle.
Do I need a stall converter with the Texas Speed LS3 Turbo cam?
Texas Speed recommends a 2,800 rpm or higher stall converter for automatic transmission vehicles running this camshaft.
How does the LS3 Turbo cam differ from the LS3 supercharger cams?
The turbo grind uses 229/242 duration on a 115 degree lobe separation angle, while the Texas Speed LS3 positive displacement cam is 225/244 on 117 LSA and the centrifugal cam is 227/244 on 117 LSA. All three share .629"/.615" lift and the same spring and pushrod requirements.
What is the idle like with the LS3 Turbo camshaft?
Texas Speed rates the LS3 Turbo Camshaft as choppy at idle and classes it as a street performance, mid-range grind for high-horsepower street and race turbo builds.
