GPI LSA / LS9 / LS PD Blower Camshaft - LS SS1 Blower - SC-STG1
Street-Friendly Power Upgrade for LSA, LS9 & PD Supercharged LS
The GPI LS SS1 Blower camshaft is built specifically for LSA, LS9, and positive displacement supercharged LS engines that need a serious bump in power without sacrificing street manners. Pound for pound, this is one of the strongest PD blower-specific cams on the market, engineered to take your factory or mild bolt-on combo to the next level.
Designed around real-world street cars, the LS SS1 Blower cam works great with the stock torque converter, maintains a stable idle around 675 RPM, and delivers excellent low-end torque with a smooth, quiet valvetrain. Power comes in hard from just off idle and continues to pull strong to around 6600 RPM, making it a killer choice for daily-driven or weekend warrior supercharged builds.
High-Lift Valvetrain Requirements
This is a high lift camshaft and must be paired with the correct supporting hardware to live happily at elevated RPM and boost levels. GPI specifies the following components as required for proper installation and reliability:
- Dual .660" valve springs
- Hardened pushrods
- AFM / DoD delete (required for compatibility and durability)
With the proper valvetrain and tuning, you get a cam that is quiet, smooth, and built for long-term longevity even under positive displacement boost.
Street Manners with Serious Blower Performance
The LS SS1 Blower cam is intentionally designed for cars with minimal modifications that still want a noticeable performance increase. It keeps manners in check:
- Stable idle around 675 RPM
- Stock torque converter friendly for easy street use
- Smooth lobe design for quiet valvetrain operation
- Strong off-idle torque and pull up to ~6600 RPM
If you're running a factory-style LSA or LS9 supercharger (or similar PD blower) and want a cam that hits harder everywhere without turning your car into a race-only setup, this grind is right in the sweet spot.
Quick Specs
- Application: LSA / LS9 / positive displacement blown LS engines
- Cam Type: High lift blower camshaft
- Valve Springs: Dual .660" required
- Pushrods: Hardened pushrods required
- AFM / DoD: Delete required
- Converter: Works with stock torque converter
- Idle Speed: Approx. 675 RPM (stable)
- RPM Range: Very strong from off idle to ~6600 RPM
- Intended Build: Mild to moderately modified PD supercharged street cars
Features & Benefits
- Purpose-built for LSA, LS9, and other PD-blown LS combinations
- High lift profile for improved airflow and increased horsepower
- Stock converter compatible for simple, budget-friendly installs
- Excellent low-end torque and midrange for street fun
- Smooth, quiet lobe design promotes valvetrain longevity
- Designed for minimal-modification builds that still want big gains
FAQs
Do I need upgraded valve springs and pushrods for this cam?
Yes. The LS SS1 Blower cam is a high lift profile and requires dual .660" valve springs and hardened pushrods to maintain reliability and valvetrain control, especially under boost.
Can I run this cam with the stock torque converter?
Yes. This cam is designed to work well with the stock torque converter, offering a stable idle around 675 RPM and strong torque from just off idle to about 6600 RPM when properly tuned.
Why Buy from Beefcake Racing?
Beefcake Racing specializes in supercharged LS and late-model GM performance, offering real-world combo advice, proven parts, and fast shipping. If you're unsure whether the GPI LS SS1 Blower cam is right for your LSA or LS9 build, we're here to help.
Call 1-855-827-7223 or email sales@beefcakeracing.com for expert guidance on cam selection, supporting mods, and tuning.
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