The Texas Speed 228/232 Camshaft is a proven naturally aspirated street performance grind for LS1, LS2 and LS6 engines with cathedral-port cylinder heads. The 228/232 split, .600" lift and 112 degree lobe separation give a noticeable performance idle, strong mid-range and excellent top-end power while keeping daily drivability once the engine is properly tuned.
Texas Speed's dyno testing shows gains of approximately 50 to 55 rear-wheel horsepower with proper supporting modifications across a 2,000 to 7,000 rpm operating range. The valve events work with either a quality beehive spring or a dual spring package, with PAC-1219 or TSP/PAC .660" dual springs recommended. A minimum compression ratio of 10.1:1, a 3,200 rpm or higher stall converter in automatics and a 3.23 or higher rear gear in automatics are recommended. Custom tuning is required for both automatic and manual transmission vehicles.
Specifications
- Duration at .050": 228/232
- Valve lift: .600"/.600"
- Lobe separation angle: 112 degrees
- Engines: Naturally aspirated LS1, LS2 and LS6 with cathedral-port cylinder heads
- Minimum recommended compression ratio: 10.1:1 or higher
- Recommended valve springs: PAC-1219 beehive or TSP/PAC .660" dual valve springs (upgraded springs required)
- Recommended stall converter: 3,200 rpm or higher for automatics
- Recommended rear gear: Not required; 3.23 or higher recommended for automatics
- Operating range: 2,000 to 7,000 rpm
- Estimated power gain: Approximately 50 to 55 rwhp with proper supporting modifications
- Idle quality: Noticeable performance idle
- Best use: Naturally aspirated street and weekend performance builds
- Tuning required: Yes, automatic and manual
- Vehicle usage: Street performance, choppy
Note: Always verify piston-to-valve clearance, valve spring compatibility and valvetrain geometry during installation.
Vehicle Applications
Engine families covered per Texas Speed: naturally aspirated LS1, LS2 and LS6 and other Gen III/Gen IV LS engines with cathedral-port cylinder heads. Vehicle list reflects Texas Speed's published fitment; confirm your cylinder head configuration.
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
Cadillac CTS-V
- 2004 Cadillac CTS-V
- 2005 Cadillac CTS-V
- 2006 Cadillac CTS-V
- 2007 Cadillac CTS-V
- 2009 Cadillac CTS-V
- 2010 Cadillac CTS-V
- 2011 Cadillac CTS-V
- 2012 Cadillac CTS-V
- 2013 Cadillac CTS-V
- 2014 Cadillac CTS-V
- 2015 Cadillac CTS-V
Cadillac Escalade
- 2005 Cadillac Escalade
- 2008 Cadillac Escalade
- 2009 Cadillac Escalade
- 2010 Cadillac Escalade
- 2011 Cadillac Escalade
- 2012 Cadillac Escalade
- 2013 Cadillac Escalade
- 2014 Cadillac Escalade
Pontiac Firebird
- 1998 Pontiac Firebird
- 1999 Pontiac Firebird
- 2000 Pontiac Firebird
- 2001 Pontiac Firebird
- 2002 Pontiac Firebird
Pontiac Firebird Formula
- 1998 Pontiac Firebird Formula
- 1999 Pontiac Firebird Formula
- 2000 Pontiac Firebird Formula
- 2001 Pontiac Firebird Formula
- 2002 Pontiac Firebird Formula
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
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 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
Chevrolet Trailblazer SS
- 2006 Chevrolet Trailblazer SS
- 2007 Chevrolet Trailblazer SS
- 2008 Chevrolet Trailblazer SS
- 2009 Chevrolet Trailblazer SS
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 engines does the Texas Speed 228/232 cam fit?
It is designed for naturally aspirated LS1, LS2 and LS6 engines with cathedral-port cylinder heads, including the 1997 to 2007 Corvette, 1998 to 2002 Camaro and Firebird, 2004 to 2006 GTO and the cathedral-port truck and SUV engines in Texas Speed's fitment list.
How much power does the 228/232 camshaft add?
Texas Speed's dyno testing shows approximately 50 to 55 rear-wheel horsepower with proper supporting modifications. Results vary with displacement, compression, heads, intake, exhaust, tuning and drivetrain.
What stall converter and rear gear does the 228/232 need?
Texas Speed recommends a minimum 3,200 rpm stall converter for automatics. A rear gear change is not mandatory, but a 3.23 or higher ratio is recommended in automatic cars for best performance.
What compression ratio does the 228/232 cam require?
Texas Speed recommends a minimum compression ratio of 10.1:1 for best performance with the 228/232, which is higher than the 9.5:1 recommended for the smaller 220R and 224R grinds.
Can I use beehive springs with the 228/232 camshaft?
Yes. The 228/232 valve events are designed to work with a quality beehive spring or a dual spring package, and Texas Speed recommends PAC-1219 beehive springs or the TSP/PAC .660" dual valve springs. Upgraded springs are required.
