The Texas Speed Billet Vented Valley Cover with Gasket Kit is built for high-horsepower LS engines, especially turbocharged combinations that generate excessive crankcase pressure. The cover vents positive crankcase pressure through dual -12 ORB ports, with adapters included, and uses a built-in baffle system to reduce oil carryover so the vented air carries less oil vapor. Texas Speed designed it to cut oil vapor contamination and help prevent front and rear main seal blowout.
The cover also carries a 1/8" NPT provision for a RIFE style crankcase pressure sensor and remains compatible with the OEM oil pressure sensor. A molded O-ring in a dovetail groove simplifies installation. Choose the Gen 3 LS or Gen 4 LS configuration at ordering; each comes with its matching gasket kit. The cover works with blocked-off rear steam ports but does not fit most 4-corner steam port kits, OEM plastic intake manifolds, low-style FAST intake manifolds or PDS superchargers.
Specifications
- Application: Gen 3 or Gen 4 LS engines, selected at ordering
- Construction: Billet valley cover
- Vent ports: Dual -12 ORB with adapters included
- Sensor provision: 1/8" NPT for a RIFE style crankcase pressure sensor
- Baffle: Built-in baffle system to reduce oil carryover
- Seal: Molded O-ring with dovetail groove
- Oil pressure sensor: Compatible with the OEM oil pressure sensor
- Steam ports: Works with blocked-off rear steam ports
- Does not fit: Most 4-corner steam port kits, OEM plastic intake manifolds, low-style FAST intake manifolds, PDS superchargers
- Engine families per Texas Speed: Gen III LS 4.8/5.3 and 5.7/6.0, Gen IV LS 4.8/5.3 and 6.0/6.2, LS7
Kit Includes
- Texas Speed billet vented valley cover, Gen 3 or Gen 4 LS (selected at ordering)
- Gasket kit matched to the selected generation
- -12 ORB port adapters
Ordering Options
Select the Valley Cover Generation that matches the engine: Gen 3 LS or Gen 4 LS. Each selection includes the billet vented valley cover and its matching gasket kit at the same price.
Note: Does not fit most 4-corner steam port kits, OEM plastic intake manifolds, low-style FAST intake manifolds or PDS superchargers. Works with blocked-off rear steam ports.
Vehicle Applications
For Gen III and Gen IV LS engines; select the generation that matches the engine at ordering. Vehicle list reflects the LS applications in Texas Speed's fitment data.
Chevrolet Camaro
- 1997 Chevrolet Camaro
- 1998 Chevrolet Camaro
- 1999 Chevrolet Camaro
- 2000 Chevrolet Camaro
- 2001 Chevrolet Camaro
- 2002 Chevrolet Camaro
- 2010 Chevrolet Camaro
- 2011 Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
- 2014 Chevrolet Camaro
- 2015 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
- 2008 Chevrolet Corvette
- 2009 Chevrolet Corvette
- 2010 Chevrolet Corvette
- 2011 Chevrolet Corvette
- 2012 Chevrolet Corvette
- 2013 Chevrolet Corvette
Cadillac CTS-V
- 2004 Cadillac CTS-V
- 2005 Cadillac CTS-V
- 2006 Cadillac CTS-V
- 2007 Cadillac CTS-V
- 2008 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
- 2002 Cadillac Escalade
- 2003 Cadillac Escalade
- 2004 Cadillac Escalade
- 2005 Cadillac Escalade
- 2006 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
- 1997 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 G8
- 2008 Pontiac G8
- 2009 Pontiac G8
Pontiac GTO
- 2004 Pontiac GTO
- 2005 Pontiac GTO
- 2006 Pontiac GTO
Chevrolet K1500
- 1999 Chevrolet K1500
- 2000 Chevrolet K1500
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
- 2014 Chevrolet Silverado 1500
Chevrolet SS
- 2014 Chevrolet SS
- 2015 Chevrolet SS
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
- 1997 Pontiac Trans Am
- 1998 Pontiac Trans Am
- 1999 Pontiac Trans Am
- 2000 Pontiac Trans Am
- 2001 Pontiac Trans Am
- 2002 Pontiac Trans Am
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 does the Texas Speed billet vented valley cover do?
It vents excessive positive crankcase pressure from high-horsepower LS engines, especially turbocharged builds, through dual -12 ORB ports while an internal baffle reduces oil carryover. Texas Speed designed it to reduce oil vapor contamination and help prevent front and rear main seal blowout.
Should I choose the Gen 3 or Gen 4 valley cover?
Choose the configuration that matches the engine block. Gen 3 LS covers the 1997 to 2007 era LS1, LS6 and early 4.8L, 5.3L and 6.0L truck engines, while Gen 4 LS covers the LS2, LS3, LS7 and later 4.8L to 6.2L truck engines. Each selection includes the matching gasket kit.
What is included in the valley cover kit?
Each kit includes the Texas Speed billet vented valley cover in the selected Gen 3 or Gen 4 configuration, the matching gasket kit and the adapters for the dual -12 ORB vent ports.
Will this valley cover fit under my intake manifold?
Texas Speed states the cover does not fit most 4-corner steam port kits, OEM plastic intake manifolds, low-style FAST intake manifolds or PDS superchargers. It works with blocked-off rear steam ports, so check the intake and steam port setup before ordering.
Does the vented valley cover have a crankcase pressure sensor port?
Yes. The cover has a 1/8" NPT provision for a RIFE style crankcase pressure sensor, and it remains compatible with the OEM oil pressure sensor so factory oil pressure monitoring is retained.
Is this valley cover only for turbo engines?
No. Texas Speed designed it for high-horsepower LS applications in general, but turbocharged combinations that build excessive crankcase pressure are the primary use case because of the venting capacity and baffling.
