The Texas Speed Blower L83 V2 3-Bolt Camshaft is a supercharger grind for GM Gen V 5.3L L83 engines that have had the factory variable valve timing removed. In place of the stock phaser, the cam uses a fixed 3-bolt pattern and must be installed with the TSP 3-Bolt Billet Upper Timing Gear and the TSP Timing Cover. Together they delete the GM VVT system and take the phaser, and its potential for timing errors and misalignment damage, out of a boosted build.
The V2 profile measures 218/228 duration at .050" with .610" lift on a 115 degree lobe separation angle and a 111 degree intake centerline, and the fuel lobe is 32 percent larger than stock to feed the direct-injection pump under boost. Texas Speed reports the updated lobes make more power with less lift than earlier versions, which improves valvetrain stability, reduces spring wear and quiets the engine. Upgraded valve springs are required, and a custom tune is required after installation.
Specifications
- Duration at .050": 218/228
- Valve lift: .610"/.610"
- Lobe separation angle: 115 degrees
- Intake centerline: 111 degrees
- Fuel lobe: +32% over stock
- Bolt pattern: 3-bolt
- Camshaft type: V2 supercharger grind for forced induction
- Engine: GM Gen V 5.3L L83 with the factory VVT system deleted
- Required hardware: TSP 3-Bolt Billet Upper Timing Gear and TSP Timing Cover
- Valve springs: Upgraded valve springs required
- Vehicle usage: Street performance, mid-range
- Chop level: Mild chop
Note: This camshaft must be used with the TSP 3-Bolt Billet Upper Timing Gear and the TSP Timing Cover to delete the factory GM VVT system. It does not work with the factory cam phaser.
Vehicle Applications
Engine application per Texas Speed: GM Gen V 5.3L L83 converted to a fixed 3-bolt cam gear (VVT deleted). Vehicle list reflects the 5.3L truck and SUV fitment published by Texas Speed for this part number.
GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
- 2019 GMC Sierra 1500
Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 1500
- 2016 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500
Chevrolet Suburban
- 2015 Chevrolet Suburban
- 2016 Chevrolet Suburban
- 2017 Chevrolet Suburban
- 2018 Chevrolet Suburban
- 2019 Chevrolet Suburban
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2022 Chevrolet Suburban
Chevrolet Tahoe
- 2015 Chevrolet Tahoe
- 2016 Chevrolet Tahoe
- 2017 Chevrolet Tahoe
- 2018 Chevrolet Tahoe
- 2019 Chevrolet Tahoe
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2022 Chevrolet Tahoe
GMC Yukon
- 2015 GMC Yukon
- 2016 GMC Yukon
- 2017 GMC Yukon
- 2018 GMC Yukon
- 2019 GMC Yukon
- 2020 GMC Yukon
- 2021 GMC Yukon
- 2022 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 engine does the Texas Speed Blower L83 V2 3-Bolt cam fit?
It is made for the GM Gen V 5.3L L83 in 2014 and later Silverado and Sierra 1500 and 2015 and later Tahoe, Suburban and Yukon, in supercharged builds where the factory VVT system has been deleted.
What parts are required to install this 3-bolt L83 camshaft?
Texas Speed requires the TSP 3-Bolt Billet Upper Timing Gear and the TSP Timing Cover. The gear replaces the factory VVT phaser and the cover accommodates the fixed gear, which is how the VVT system is deleted. Upgraded valve springs and a custom tune are also required.
Why delete VVT on a supercharged L83?
Texas Speed states that VVT can cause issues in boosted applications and that the phaser introduces risk of timing errors and engine damage from misalignment. A fixed 3-bolt gear gives a simpler, more reliable valvetrain for a blower build.
What are the specs of the Blower L83 V2 3-Bolt camshaft?
The cam is 218/228 duration at .050", .610"/.610" lift, 115 degree lobe separation angle and 111 degree intake centerline, with a 32 percent larger fuel lobe than stock and a 3-bolt cam gear pattern.
How does the V2 profile differ from the earlier L83 blower cam?
Texas Speed reports the V2 lobes were redesigned to make more power with less lift, which improves valvetrain stability, reduces valve spring wear and makes the engine quieter than earlier versions.
