GPI L83 / L84 (5.3L) DI Truck Low Lift Cams - STG1 (2014+ GM Truck) - L83LL1
Top-Tier Low-Lift Camshaft Upgrade for 5.3L Direct Injected GM Trucks
The GPI L83LL1 STG1 camshaft is engineered to deliver exceptional drivability and reliable performance gains for 5.3L Direct Injected GM trucks (L83/L84). Designed around a smooth, quiet low-lift lobe profile, this cam improves low-end torque, throttle response, and overall power - while maintaining excellent idle stability and long-term valvetrain life.
This cam is ideal for lightly modified trucks that still work, tow, daily drive, or see mixed-use duty. It operates perfectly with the stock torque converter, and its low-lift design ensures durability and OE-level reliability.
Technical Notes
- These are low lift LT truck cams designed for L83/L84 DI engines.
- Requires Stock LT1 valve springs, hardened pushrods, and a GPI 4° Phaser Limiter.
- No cylinder head milling without checking piston-to-valve clearance - L83 has tighter clearance than LT1/L86.
- Works great with the stock torque converter and minimally modified engines.
- Designed for durability and dependable operation in daily-driven and work-oriented trucks.
GPI 5.3 Direct Injected Truck Cam Overview
GPI's 5.3L DI truck cams have become the industry benchmark for 2014+ GM trucks. Whether staying naturally aspirated or planning future boost, these cams offer predictable gains, strong torque production, and OE-level drivability. Because centrifugal blowers follow a similar power curve to NA applications, this cam also excels in boosted builds.
The lineup includes four versions ranging from near-stock manners to aggressive max-power options - STG1 being the most street-friendly and tow-capable version.
Stage 1 Camshaft Specifications - L83LL1
- Duration (Int/Exh): 21x / 22x
- Valve Lift (Int/Exh): .54x / .54x
- LSA: 114
- ICL: +8
- Torque Converter: Not required
- Phaser Limiter: GPI 4° required
- RPM Behavior: Excellent low-end torque with strong midrange
Performance Highlights
- Improved low-end torque and responsiveness
- Works with the stock converter for easy installation
- Smooth, stable idle suitable for daily-driven trucks
- Ideal for stock or lightly modified 5.3L DI platforms
- Quiet valvetrain behavior with long-term durability
- Boost-friendly design for future centrifugal blower upgrades
Fitment
Chevrolet Silverado 1500 - 5.3L L83 / L84
- 2014 Chevrolet Silverado 1500 5.3L
- 2015 Chevrolet Silverado 1500 5.3L
- 2016 Chevrolet Silverado 1500 5.3L
- 2017 Chevrolet Silverado 1500 5.3L
- 2018 Chevrolet Silverado 1500 5.3L
- 2019 Chevrolet Silverado 1500 5.3L (L83)
- 2020 Chevrolet Silverado 1500 5.3L (L84)
- 2021 Chevrolet Silverado 1500 5.3L (L84)
- 2022 Chevrolet Silverado 1500 5.3L (L84)
- 2023 Chevrolet Silverado 1500 5.3L (L84)
- 2024 Chevrolet Silverado 1500 5.3L (L84)
GMC Sierra 1500 - 5.3L L83 / L84
- 2014 GMC Sierra 1500 5.3L
- 2015 GMC Sierra 1500 5.3L
- 2016 GMC Sierra 1500 5.3L
- 2017 GMC Sierra 1500 5.3L
- 2018 GMC Sierra 1500 5.3L
- 2019 GMC Sierra 1500 5.3L (L83)
- 2020 GMC Sierra 1500 5.3L (L84)
- 2021 GMC Sierra 1500 5.3L (L84)
- 2022 GMC Sierra 1500 5.3L (L84)
- 2023 GMC Sierra 1500 5.3L (L84)
- 2024 GMC Sierra 1500 5.3L (L84)
Chevrolet Tahoe - 5.3L L83 / L84
- 2015 Chevrolet Tahoe 5.3L
- 2016 Chevrolet Tahoe 5.3L
- 2017 Chevrolet Tahoe 5.3L
- 2018 Chevrolet Tahoe 5.3L
- 2019 Chevrolet Tahoe 5.3L
- 2020 Chevrolet Tahoe 5.3L (L84)
- 2021 Chevrolet Tahoe 5.3L (L84)
- 2022 Chevrolet Tahoe 5.3L (L84)
- 2023 Chevrolet Tahoe 5.3L (L84)
- 2024 Chevrolet Tahoe 5.3L (L84)
Chevrolet Suburban - 5.3L L83 / L84
- 2015 Chevrolet Suburban 5.3L
- 2016 Chevrolet Suburban 5.3L
- 2017 Chevrolet Suburban 5.3L
- 2018 Chevrolet Suburban 5.3L
- 2019 Chevrolet Suburban 5.3L
- 2020 Chevrolet Suburban 5.3L (L84)
- 2021 Chevrolet Suburban 5.3L (L84)
- 2022 Chevrolet Suburban 5.3L (L84)
- 2023 Chevrolet Suburban 5.3L (L84)
- 2024 Chevrolet Suburban 5.3L (L84)
GMC Yukon / Yukon XL - 5.3L L83 / L84
- 2015 GMC Yukon 5.3L
- 2016 GMC Yukon 5.3L
- 2017 GMC Yukon 5.3L
- 2018 GMC Yukon 5.3L
- 2019 GMC Yukon 5.3L
- 2020 GMC Yukon 5.3L (L84)
- 2021 GMC Yukon 5.3L (L84)
- 2022 GMC Yukon 5.3L (L84)
- 2023 GMC Yukon 5.3L (L84)
- 2024 GMC Yukon 5.3L (L84)
FAQs
Does the STG1 cam require flycutting or piston machining?
Not when used with unmilled heads. However, L83 engines have tighter PTV clearance than LT1/L86, so any head milling requires checking clearance.
Will the stock converter work with the STG1 cam?
Yes. The Stage 1 cam is designed specifically to operate perfectly with the stock converter while improving torque and drivability.
Why Buy from Beefcake Racing?
Beefcake Racing offers expert guidance, fast shipping, and guaranteed genuine GPI camshafts. Need assistance choosing the right cam for your L83 or L84 truck?
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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