GPI LSA / LS9 / LS PD Blower Camshaft - LS SS3 Blower - SC-STG3
Maximum-Effort Street/Strip Camshaft for Supercharged LS Engines
The GPI LS SS3 Blower is the most aggressive and highest-output camshaft in the SS blower series, engineered specifically for LSA, LS9, and positive displacement supercharged Gen IV LS engines. Pound for pound, it stands at the top of the lineup for enthusiasts who demand the strongest torque and horsepower gains possible from a street/strip PD blower grind.
This is a high lift camshaft and requires the correct valvetrain upgrades - dual .660" valve springs, hardened pushrods, and an AFM/DoD delete. With proper support, it becomes a track-proven powerhouse capable of pulling extremely hard all the way to roughly 6900 RPM.
Built for Hardcore Street/Strip Performance
The SS3 Blower cam is the ideal upgrade for enthusiasts who want the most from their PD supercharger while maintaining street functionality. It produces more torque and horsepower than the SS1 and SS2, and is optimized for aggressive combinations.
- Very strong to ~6900 RPM with excellent stability
- 3600+ stall converter required
- Thrives with 3.91 rear gearing
- Track tested, developed, and proven in real-world blower builds
Proven GPI Race-Dominating Engineering
GPI camshafts have become the performance benchmark for supercharged LS platforms. Their cam and head packages dominate race tracks nationwide thanks to precise engineering, optimized ramp rates, and blower-specific airflow characteristics. The SS3 is the apex of the series, designed for the most serious street/strip setups.
Whether you're running a ZL1, CTS-V, ZR1, or any PD blower - powered Gen IV LS, the SS3 is a top-tier upgrade for maximum output while maintaining controlled, predictable drivability in a properly built combination.
SS3 Blower Cam Specs - SC-STG3
- Duration (Int/Exh): 230 / 251
- Valve Lift (Int/Exh): .646 / .637
- LSA: 118
- ICL: +6.5
- RPM Capability: Extremely strong to ~6900 RPM
- Converter: 3600+ stall required
- Rear Gearing: Ideal with 3.91 gears
Quick Specs
- Application: LSA / LS9 / PD supercharged LS
- Duration: 230 / 251
- Lift: .646 / .637
- LSA / ICL: 118 / +6.5
- Converter: 3600+ RPM
- RPM Range: Up to ~6900 RPM
- Rear Gear Ratio: Works best with 3.91 gearing
- Valvetrain: Dual .660" springs & hardened pushrods
- AFM/DoD: Delete required
Features & Benefits
- Highest output cam in the SS blower series
- More torque & horsepower than SS1 and SS2
- Optimized for PD blowers such as LSA & LS9
- Street/strip focused with proven track results
- Thrives in aggressive gear & converter setups
- Engineered for ZL1, CTS-V, ZR1, and other Gen IV LS PD builds
FAQs
How does the SS3 compare to the SS1 and SS2 blower cams?
The SS3 delivers the highest torque and horsepower of the lineup and pulls harder through the entire RPM range. It requires a 3600+ stall converter and thrives with 3.91 gears.
Is the SS3 still streetable?
Yes - this cam is ideal for a hardcore street/strip build. With the right converter, gears, and tuning, it maintains a usable street presence while offering race-level performance.
Why Buy from Beefcake Racing?
Beefcake Racing is a trusted source for supercharged LS performance, providing expert recommendations, proven packages, and fast shipping. If you need help choosing between GPI blower cam stages - or building a complete PD blower setup - our team is here to help.
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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