GPI LT1 / L86 / L83 Turbo Camshaft - LT Turbo STG2 (2016 - 2024 Camaro | 2014 - 2019 C7 Corvette) - LT-TC2
Moderate-Boost Turbo Cam for Strong Mid-Range & Quick Spool
The GPI LT Turbo STG2 Camshaft (LT-TC2) is engineered for Gen V LT1, L86, and L83 engines running moderate-boost turbocharger setups. Designed for 6th Gen Camaro, C7 Corvette, and 2014+ GM trucks, STG2 delivers quicker spool, harder mid-range pull, and excellent street drivability - making it the perfect upgrade for aggressive street cars and dual-purpose street/strip builds.
With a mild performance idle and strong mid-range torque, STG2 shines in applications utilizing free-flowing exhaust systems and upgraded stall converters. Valve spring and pushrod upgrades are required.
Performance Highlights
- Optimized for turbo setups targeting moderate boost levels
- Mild performance idle with noticeable mid-range punch
- Excellent spool characteristics and improved torque curve
- Ideal for street/strip use with strong top-end capability
- Works across LT1, L86, and L83 engine families
Quick Specs
- Part Number: LT-TC2
- Duration (Int/Exh): 222 / 234
- Valve Lift (Int/Exh): .630 / .612
- LSA: 114
- ICL: +3
- Recommended Mods: Stall converter, free-flowing exhaust
- Required Mods: Valve springs & pushrods
Why Choose This Cam?
- Balances power, spool, and drivability for turbo LT builds
- Proven on real-world street/strip combinations
- Stronger mid-range than STG1 with expanded top-end
- Engineered by GPI - leaders in LT cam development
Fitment
Each line is an individual, complete fitment:
2016 Camaro (LT1)
2017 Camaro (LT1)
2018 Camaro (LT1)
2019 Camaro (LT1)
2020 Camaro (LT1)
2021 Camaro (LT1)
2022 Camaro (LT1)
2023 Camaro (LT1)
2024 Camaro (LT1)
2014 Corvette (LT1)
2015 Corvette (LT1)
2016 Corvette (LT1)
2017 Corvette (LT1)
2018 Corvette (LT1)
2019 Corvette (LT1)
2014 GMC Sierra (L83/L86)
2015 GMC Sierra (L83/L86)
2016 GMC Sierra (L83/L86)
2017 GMC Sierra (L83/L86)
2018 GMC Sierra (L83/L86)
2019 GMC Sierra (L83/L86)
2014 Chevrolet Silverado (L83/L86)
2015 Chevrolet Silverado (L83/L86)
2016 Chevrolet Silverado (L83/L86)
2017 Chevrolet Silverado (L83/L86)
2018 Chevrolet Silverado (L83/L86)
2019 Chevrolet Silverado (L83/L86)
FAQs
Is a stall converter required for STG2?
A converter is not absolutely required, but performance improves dramatically with an upgraded stall. Recommended for best results.
Can I run this cam on a stock long block?
Yes - STG2 is compatible with stock LT1/L86/L83 long blocks, but valve springs and pushrods are required.
Why Buy from Beefcake Racing?
We provide expert tech support, real-world turbo LT experience, and fast shipping on all GPI products.
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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