GPI LS7 Cam - SS3 LS7 w/ 8620 Hardened Core (2010 - 2015 Camaro Z/28 | 2014 - 2019 C7 Corvette Z06) - LS7STG3.1-8620
Maximum NA Power with 8620 Core Durability
The GPI SS3 LS7 Camshaft with 8620 Hardened Core is the most aggressive profile in the GPI LS7 lineup - built for serious street/strip customers who want peak naturally aspirated performance with the added longevity and strength of an 8620 heat-treated core. This upgrade delivers superior wear resistance and long-term stability under high valve spring pressures.
Please note: This is a high-lift, 3-bolt LS7 camshaft. Requires .660? dual springs and hardened pushrods. Increased compression is recommended for best results.
Hard-Hitting Performance for High-RPM LS7 Builds
With its distinctive performance idle and explosive upper-mid to high-RPM horsepower, the SS3 LS7 is the perfect choice for the hardcore LS7 enthusiast. It outpowers the SS1 and SS2 profiles and remains extremely strong to 7400 RPM. Track-proven reliability makes it a favorite among competitive NA builders.
Why Choose the 8620 Hardened Core?
GPI's 8620 hardening process creates a more durable wear surface on the lobes while maintaining the alloy's ductility. The result is a stronger, more resilient camshaft capable of handling aggressive spring pressures and high-RPM abuse - ideal for serious performance engines.
LS7 Cam Series Overview
GPI LS7 camshafts dominate the 5th Gen Z/28 and C6/C7 Z06 market. Designed for exceptional naturally aspirated performance, they also pair extremely well with centrifugal superchargers, offering flexibility for future build progression.
Cam Specs - SS3 LS7 (8620 Core)
- Duration (Int/Exh): 238 / 254
- Valve Lift (Int/Exh): .648 / .639
- LSA: 114
- ICL: +4
- RPM Range: Extremely strong to 7400 RPM
- Idle Quality: Aggressive performance idle
Performance Highlights
- Most aggressive LS7 cam in the SS-series
- Biggest torque and horsepower gains in the lineup
- Improved upper mid-range and high-RPM power
- 8620 hardened core for superior durability
- Ideal for high-compression NA engines or future centrifugal boost
Quick Specs
- Engine: LS7 7.0L
- Cam Type: High-lift, 3-bolt, 8620 hardened core
- Required Upgrades: .660? dual springs, hardened pushrods
- Recommended: Increased compression & high-RPM valvetrain
- Best Use: Street/strip, competitive NA builds
Fitment
Chevrolet Camaro Z/28
- 2010 Chevrolet Camaro Z/28
- 2011 Chevrolet Camaro Z/28
- 2012 Chevrolet Camaro Z/28
- 2013 Chevrolet Camaro Z/28
- 2014 Chevrolet Camaro Z/28
- 2015 Chevrolet Camaro Z/28
Chevrolet Corvette Z06 (C7)
- 2014 Chevrolet Corvette Z06
- 2015 Chevrolet Corvette Z06
- 2016 Chevrolet Corvette Z06
- 2017 Chevrolet Corvette Z06
- 2018 Chevrolet Corvette Z06
- 2019 Chevrolet Corvette Z06
FAQs
What's the benefit of choosing the 8620 hardened core version?
The 8620 core dramatically increases wear resistance and camshaft longevity, especially in high-spring-pressure, high-RPM applications.
Is the SS3 LS7 streetable?
Yes - while aggressive, it maintains good drivability for street/strip builds, with a strong performance idle and excellent throttle response.
Why Buy from Beefcake Racing?
For expert guidance, fast shipping, and the best pricing on GPI camshafts, Beefcake Racing has you covered.
Call 1-855-827-7223 or email sales@beefcakeracing.com for personalized support.
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