
BTR-PDSSTAGE4 Hydraulic Roller Stage 4 Camshaft for GM Gen III/IV LS Engines w/ PD Supercharger
The BTR-PDSSTAGE4 camshaft is built for maximum power in PD supercharged LS engines, producing exceptional airflow and top-end performance with a race-style idle.
Brian Tooley Racing BTR-PDSSTAGE4 Features:
- Duration @ .050: 232 Int. / 244 Ex.
- Valve Lift: .620 in. Int. / .620 in. Ex.
- LSA: 115 deg
- Optimized for high-boost supercharged combinations
- Designed for maximum RPM and airflow
Brian Tooley Racing BTR-PDSSTAGE4 Notes:
- Dual springs, titanium retainers, and tuning required
- Not recommended for stock converter or daily driving
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Unlock Maximum LS Power with BTR Camshafts for GM Gen III/IV LS Engines
Brian Tooley Racing (BTR) offers high-performance camshaft solutions tailored for Gen III/IV GM LS platforms, perfect for Silverado/Sierra trucks and LS‑swapped muscle cars. With aggressive grind profiles, durable design, and dyno-proven power gains, these camshafts deliver torque and horsepower increases across the RPM range.BTR's Gen III/IV cam lineup includes the signature Truck Norris, Stage 1, Stage 2, Stage 3, LS1/LS2 Stage 3, LS3 Stage 4, and turbo‑optimized variants like Stage 1 Turbo and Twin Turbo V2. Each cam is CNC-ground from proprietary cores, heat-treated for lasting reliability, and spin- and dyno-tested for peak performance and stability.

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