GPI LS3 Camshaft - LS SS4 (No Flycut) - SS4NFC
All-Out N/A Performance Camshaft - No Flycutting Required
The GPI LS SS4 (No Flycut) Camshaft is the most aggressive profile in the SS-Series that still clears stock LS3/LS2/LS1 heads and factory gaskets without piston flycutting. Designed for maximum naturally aspirated performance, this cam is track-tested, street-capable, and built for serious LS enthusiasts looking for proven 10-second potential with the right supporting mods.
The SS4NFC is exceptionally strong to 7200 RPM and pairs best with a 4000+ RPM torque converter and 3.91 - 4.10 rear gearing. Despite its aggressive nature, it remains surprisingly streetable for an all-out N/A application.
Track-Tested, Developed & Proven
Like the entire SS-Series, the SS4NFC has been extensively tested in real racing environments. GPI Camshaft and Head Packages featuring this camshaft have consistently pushed Camaros and Corvettes deep into the 10-second range. Its combination of airflow, duration, and lift makes it a top performer for builders who want everything an N/A LS can deliver - without machining pistons.
Built for N/A Power but Excellent with Centrifugal Boost
Although engineered as an all-out naturally aspirated camshaft, the SS4NFC works extremely well with centrifugal supercharger setups. Centrifugal blowers maintain an N/A-like, linear power curve, allowing this cam to produce exceptional top-end horsepower whether you're boosted or high-compression N/A.
Four SS-Series Iterations
The SS-Series consists of four cam profiles ranging from mild to aggressive. The SS4NFC is the most aggressive profile available while still being safe on stock heads and gaskets without flycutting, making it a favorite for high-compression street cars and strip-focused builds.
Installation Requirements
As a high-lift, 3-bolt LS camshaft, the SS4NFC requires proper valvetrain support:
- Dual .660" valve springs
- Hardened pushrods
- 3-bolt cam conversion (if replacing a single-bolt cam)
- Torque Converter: 4000+ RPM required
- Gearing: Prefers 3.91 - 4.10 rear gears
This camshaft is specifically designed to clear on stock heads and gaskets with no milling or piston modification.
Camshaft Specs
- Duration (Intake/Exhaust): 236 / 252
- Valve Lift (Intake/Exhaust): .646" / .637"
- LSA: 113
- ICL: +4
- RPM Range: Pulls hard to 7200 RPM
- Converter Requirement: 4000+ RPM
- Recommended Gearing: 3.91 - 4.10
- Flycutting Required: No (Safe with stock heads)
Features
- Most aggressive SS-Series camshaft that requires no piston flycutting
- All-out N/A performance with strong top-end power to 7200 RPM
- Track-tested, developed, and proven 10-second capable cam
- Very streetable for its level of performance
- Pairs best with 4000+ RPM converter and 3.91 - 4.10 gearing
- Excellent compatibility with centrifugal superchargers
- Clears stock LS heads and gaskets with no milling required
Quick Specs
- Part Number: SS4NFC
- Platform: LS3 / LS2 / LS1
- Cam Type: High-lift 3-bolt
- RPM Capability: Strong to 7200 RPM
- Flycutting: Not required
- Converter Requirement: 4000+ RPM
- Recommended Gearing: 3.91 - 4.10
- Required Hardware: Dual .660 springs, hardened pushrods, 3-bolt conversion
FAQs
How is the SS4NFC different from a standard SS4 cam?
The SS4NFC is specially engineered to clear stock heads and factory gaskets without piston flycutting, making it a safer upgrade for builders who want maximum N/A power without machining.
Is this cam still streetable?
Yes - while aggressive, the SS4NFC remains surprisingly streetable when paired with the proper converter and gearing. It is intended for serious enthusiasts who want all-out performance with occasional street use.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert support, competitive pricing, and fast shipping on all GPI camshafts and LS valvetrain components. Need help selecting the right SS-Series cam for your build?
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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