GPI LS Turbo Camshaft - with 8620 Hardened Core Upgrade - STG2 (2010 - 2015 Camaro | 2014 - 2019 C7 Corvette) - TC-STG2-8620
Stage 2 Turbo LS Camshaft with Premium 8620 Hardened Core
The GPI TC-STG2-8620 is the upgraded, durability-enhanced version of GPI's extremely popular Stage 2 turbo camshaft - built specifically for 6.0 - 6.2L LS engines running moderate boost. Designed to elevate the performance of your 5th Gen Camaro or C7 Corvette, this cam delivers sharper mid-range punch, improved turbo spool, and exceptional drivability, all while benefiting from the added strength of an 8620 hardened cam core.
Expect a mild performance idle, outstanding mid-range torque, and quick-spooling behavior ideal for street/strip turbo setups. This cam performs best with a higher-stall converter and a free-flowing intake and exhaust system. Valve spring and pushrod upgrades are required.
Why Choose the 8620 Hardened Core Upgrade?
The 8620 upgrade significantly increases camshaft surface hardness, resulting in:
- Superior lobe durability under high cylinder pressures
- Reduced wear for long-term reliability
- Ideal compatibility with aggressive turbo applications
This makes the TC-STG2-8620 the ideal choice for turbo LS builds that demand maximum reliability under boost.
Turbo LS Camshaft Overview
GPI's turbo camshafts have set the standard for LS2, L76, and LS3 engines running LS3/L92 rectangle-port heads. These cams have consistently propelled 5th Gen Camaros and C6/C7 Corvettes into the 9-second zone, proving their performance potential.
The Stage 2 version hits the sweet spot - more aggressive than STG1 yet highly streetable, making it a top choice for moderate-boost LS builds.
Stage 2 Turbo Cam Specs - TC-STG2-8620
- Duration (Int/Exh): 222 / 228
- Valve Lift (Int/Exh): .637 / .629
- LSA: 114.5
- ICL: +3.5
Performance Characteristics
- Mild performance idle with very good drivability
- Quick turbo spool and stronger mid-range torque vs. STG1
- Designed for moderate boost turbo systems
- Thrives with free-flowing exhaust and a higher-stall converter
- Valve springs and pushrods required
- Enhanced valvetrain longevity thanks to the 8620 core
Quick Specs
- Engine: 6.0 - 6.2L LS Turbo
- Cam Type: 3-bolt turbo LS cam with hardened 8620 core
- Duration: 222 / 228
- Lift: .637 / .629
- LSA / ICL: 114.5 / +3.5
- Boost Range: Moderate
- Converter: Higher-stall strongly recommended
- Valvetrain: Springs & pushrods required
Fitment
Chevrolet Camaro
- 2010 Chevrolet Camaro
- 2011 Chevrolet Camaro
- 2012 Chevrolet Camaro
- 2013 Chevrolet Camaro
- 2014 Chevrolet Camaro
- 2015 Chevrolet Camaro
Chevrolet Corvette C7
- 2014 Chevrolet Corvette
- 2015 Chevrolet Corvette
- 2016 Chevrolet Corvette
- 2017 Chevrolet Corvette
- 2018 Chevrolet Corvette
- 2019 Chevrolet Corvette
FAQs
Is the 8620 core necessary for a turbo build?
While not required, the 8620 hardened core is highly recommended for turbo setups due to its superior resistance to lobe wear and long-term reliability.
How does STG2 differ from STG1?
The Stage 2 provides stronger mid-range torque, quicker spool, and more aggressive power delivery, making it ideal for moderate-boost street/strip combinations.
Why Buy from Beefcake Racing?
Beefcake Racing is a trusted leader in LS turbo performance, offering expert recommendations, top-tier components, and fast shipping. Whether building a street machine or a track monster, we help you choose the right camshaft and supporting hardware.
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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