Performance Parts Parts for 2007–2014 GM Truck GMT900
Products
Head Gaskets
Cometic – LS2 / LS3 / L99 Head Gasket 4.100″ Bore With .040 Thickness
Part Number: H1518SP1040S
- .040" thick head gaskets for 6.0-6.2 applications.
- Always ensure adequate piston to valve clearance when milling or installing thinner gaskets!
- Sold Individually (Purchase 2 for complete set)
Apparel
Camshafts & Valvetrain
GPI – L99 VVT Cam Phaser Limiter Kit
Part Number: L99LMTR
- GPI Exclusive
- Designed for L99 VVT
- Cam Phaser Tool
- Cam Phaser Spring Lock Tool
- Cam Phaser Limiter Plug
Camshafts & Valvetrain
Part Number: gpi-l99-cam
Pound for pound - the best L99 cam on the market. These cams have become the benchmark for L99 powered 5th Gen Camaro's around the country. Want to learn why GPI makes the best performing Camshafts you can buy! [button size="medium" style="secondary" text="GPI R&D" link="http://gwatneyperformance.com/cam-testing/" target="" expand="true"] Want…
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Engine
Lifters
Part Number: camM7717
- Designed for Stock applications and are suitable for stock LS applications using lower spring pressures. Not suitable for dual spring applications that see over 6500 RPM.
Remote Tuning
GPI – Remote Tuning Calibration Package (INCLUDES HP Tuners Hardware)
Part Number: GPI-REMOTE-TUNE-WITH-HARDWARE
- NOTE: tuning@gwatneyperformance.com is the ONLY email used for remote tuning. Clear instruction for datalogging and the files needed are supplied when we send your first calibration file to get started.
- You MUST supply the stock or current calibration file out of the car, order number for tuning, your mod list, use our channel and layout files that are supplied for data logging, and any/all specific requests for calibration details/preferences. Failure to provide any of the information or calibration file WILL result in delays. Please read our instructions and videos for setup below in the bottom portion of the page to familiarize yourself with the software. You MUST use HP Tuners Beta Software.
- Remote/Email Tuning - An interactive process that gets YOU involved in dialing in your combination. We work together until it is RIGHT!
- Engine & Transmission Tuning which includes Speed Density AND MAF calibration standard on ALL applications.
- For forced induction setups a Wideband Air/Fuel Gauge logged into HP Tuners is REQUIRED. Naturally Aspirated setups it is HIGHLY RECOMMENDED. AEM X Series OBD is the most common used for simple integration. Ballenger also has a Can wideband Option.
Engine
Melling Select – High Volume High Pressure 8 GPM LS Oil Pump (10296)
Part Number: 10296
- High volume
- High pressure
- 8gpm volume
- +10psi pressure
- Requires 6+ quart oil sump capacity
Camshaft Sprocket Bolts
GPI – OEM Style VVT Camshaft Gear Bolt (12682000)
Part Number: 12682000
- Combination bolt and valve for Variable Valve Timing (VVT) engines
- For L92 / L99 engines
- Cam Gear Bolt
- Timing Gear Bolt
Engine
GPI – LS3 Heads / L92 Heads (Ported)
Part Number: LS3CNCPACKAGE
- Intake Port Volume: 281cc
- Exhaust Port Volume: 98cc
- Our 281CC LS3 / L92 / L99 / LSA head was developed specifically for the stock displacement LS engine to deliver improved cylinder fill in the lower RPM ranges while adding substantial airflow increase in the upper Ranges as well.
- Our testing has shown over 30 hp increase while improving torque below the curve.
Camshafts & Valvetrain
OEM Style – Valve Spring Kit LS2 / LS3 / LS6 Beehive-style (19420455)
Part Number: 19420455
- LS2 / LS3 / LS6 Beehive-style
- 1.250'' @ 295 lbs. pressure
- 1.800'' installed height @ 90 lbs. pressure
- Max lift .550''
- Use cap p/n 809-10166344
Converters
Circle D – 6L80/90 Pro Series Multi Disk Converter
Three diameters are available for the 6L80 Pro Series Multi Disk. 245mm is good for lighter cars and big NA setups. 258mm is great for heavy cars and smaller trucks, bigger power setups, or more of a street build. 265mm is for a really big power setup or large…
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Spark Plug Wires
GPI – Spark Plug Wire Set for 99+ GM LS Truck Engines
- Standard Version: For stock and naturally aspirated configurations
- Xtreme Heat Version: For forced induction configurations seeing higher EGTs. Upgraded boot and additional heat sleeve.
- Standard Length: Fits Chevy LS TRUCK engines (11.5" overall length including boots)
- Available in Multiple Colors
- 30 Ohms Per Foot High Inductance Wire
Camshafts & Valvetrain
GPI – Low Lift LS Camshaft (4.8L / 5.3L / 6.0L / 6.2L)
Part Number: gpi-ls-truck-ll-cam
Our camshafts are our most popular product, and for good reason - they are pound for pound - the best on the market. These low lift performance truck cams are specifically designed and engineered to take your Silverado, Sierra, Tahoe, Yukon, Avalanche, Suburban, hot rod, or street…
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Shirts
