GPI LT1 Camshaft - SS4 LT (2014 - 2019 C7 Corvette) - SS4-LT
The Most Aggressive N/A LT1 Camshaft in the SS-Series
The GPI SS4 LT Camshaft is the top-level, all-out naturally aspirated camshaft for the 2014 - 2019 C7 Corvette LT1. Designed for hardcore street/strip and competition-focused builds, this cam delivers massive airflow, explosive high-RPM power, and the strongest performance of any SS-Series LT cam. The SS4 LT has been extensively track tested and is a proven 10-second capable camshaft when combined with supporting heads and bolt-ons.
This cam is extremely powerful - pulling hard all the way to 7200 RPM - and is intended for high-compression builds running a minimum of 12.5:1 compression (13:1 ideal). Due to its aggressive lift and duration, the SS4 LT requires piston flycutting for safe piston-to-valve clearance.
Engineered for Maximum N/A Output
The SS4 LT is built for enthusiasts who want every last bit of naturally aspirated horsepower from their LT1. Designed around high-RPM airflow, cylinder pressure optimization, and valvetrain stability, this cam represents the limit of what can be achieved in an LT1 without stepping into a custom race profile.
Centrifugal Boost Friendly
Although designed for N/A power, the SS4 LT also pairs extremely well with centrifugal superchargers. Because centrifugal systems follow a linear, N/A-like power curve, the SS4's aggressive profile continues to work effectively under boost - making it a strong option for boosted, high-compression competition builds.
Five LT-Series Cam Options
The SS4 LT is the most aggressive cam in the 5-cam LT1 SS-Series lineup, sitting above the SS1, SS2, and SS3 grinds. GPI also offers custom spec cam options for specialized engine combinations.
Installation Requirements
- Dual .660" valve springs
- Hardened pushrods
- AFM/DoD delete required
- 4000+ RPM torque converter required
- Piston flycutting required for safe clearance
- Compression: Minimum 12.5:1, ideally 13:1
Camshaft Specs
- Duration (Intake/Exhaust): 233 / 257
- Valve Lift (Intake/Exhaust): .639" / .639"
- LSA: 112
- ICL: +3
- RPM Range: Extremely strong to 7200 RPM
Features
- Most aggressive LT1 cam in the SS-Series
- Proven 10-second capability with heads and supporting mods
- Optimized for high-compression naturally aspirated builds
- Excellent compatibility with centrifugal boost
- Requires piston flycutting for proper valve clearance
- Designed for hardcore street/strip and competition use
Quick Specs
- Part Number: SS4-LT
- Platform: 2014 - 2019 C7 Corvette LT1
- Powerband: Up to 7200 RPM
- Converter Requirement: 4000+ stall
- Compression Requirement: 12.5:1 minimum
Fitment
- 2014 Chevrolet Corvette Stingray LT1
- 2015 Chevrolet Corvette Stingray LT1
- 2016 Chevrolet Corvette Stingray LT1
- 2017 Chevrolet Corvette Stingray LT1
- 2018 Chevrolet Corvette Stingray LT1
- 2019 Chevrolet Corvette Stingray LT1
FAQs
Do I really need to flycut pistons for the SS4 LT?
Yes. Due to the aggressive duration and lift, flycutting is required to maintain safe piston-to-valve clearance - even on engines with stock pistons and heads.
Is the SS4 LT cam streetable?
It is streetable with a 4000+ stall converter, but it is primarily intended for high-performance street/strip cars or competition builds running high compression.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert LT1 camshaft guidance, competitive pricing, and fast shipping on all GPI performance components. Need help choosing the best cam for your C7 Corvette?
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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