The Texas Speed Stage 4 LS7 N/A Camshaft is the largest naturally aspirated grind in the Texas Speed LS7 lineup, for owners chasing every last bit of horsepower from a 7.0L LS7. Texas Speed custom ground the lobes specifically for the LS7 so they make power across the rpm band while staying stable, which it says results in a quieter and longer lasting valvetrain than most comparable camshafts.
The cam measures 248/260 duration at .050", .657"/.655" lift, a 111 degree lobe separation angle and a 108 degree intake centerline, with a power band of 3,000 to 7,000 rpm and an aggressive idle. Texas Speed designed it on a factory GM 7.0L LS7 with no other internal changes, rates it race/aggressive with a very aggressive chop, and states custom tuning is required. Upgraded valve springs are required.
Specifications
- Duration at .050": 248/260
- Valve lift: .657"/.655"
- Lobe separation angle: 111 degrees
- Intake centerline: 108 degrees
- Engine: 7.0L LS7, naturally aspirated
- Lobe design: Custom-ground LS7-specific lobes for valvetrain stability
- Power band: 3,000 to 7,000 rpm
- Valve springs: Upgraded valve springs required
- Tuning: Custom tuning required
- Development: Designed on a factory GM 7.0L LS7 with no other internal changes
- Vehicle usage: Race / aggressive
- Chop level: Very aggressive
Vehicle Applications
Engine covered per Texas Speed: GM 7.0L LS7 as used in the 2006 to 2013 Corvette Z06 and 2014 to 2015 Camaro Z/28.
Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
- 2014 Chevrolet Camaro
- 2015 Chevrolet Camaro
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
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 engine does the Texas Speed Stage 4 LS7 cam fit?
It is ground for the naturally aspirated GM 7.0L LS7 found in the 2006 to 2013 Corvette Z06 and the 2014 to 2015 Camaro Z/28, and Texas Speed designed it on a factory LS7 with no other internal changes.
Who is the Stage 4 LS7 camshaft for?
Texas Speed aims the Stage 4 at owners who want every last ounce of horsepower from the LS7. It is the largest of its naturally aspirated LS7 grinds, with a 3,000 to 7,000 rpm power band, a very aggressive idle and a race/aggressive usage rating.
How does the Stage 4 LS7 cam compare to the Stage 3?
Both use .657"/.655" lift and a 111 degree LSA with Texas Speed's LS7-specific lobes. Stage 4 adds duration at 248/260 with a 108 degree intake centerline and a 3,000 to 7,000 rpm band, versus 240/252 and 2,800 to 6,900 rpm for the Stage 3.
Are upgraded valve springs required for the Stage 4 LS7 cam?
Yes. Texas Speed lists upgraded valve springs as required for this camshaft, which lifts the valves .657" on the intake and .655" on the exhaust.
Is tuning required with the Stage 4 LS7 camshaft?
Yes. Texas Speed states custom tuning will be required after installing the Stage 4 LS7 camshaft, given its 248/260 duration and aggressive idle.
