Description
The BTR PDS Stage 4 Camshaft (BTRBTR-PDSSTAGE4) is engineered for high-performance applications in GM LSA and LS9 engines, including models like the Camaro ZL1 and Corvette ZR1. This camshaft offers significant power gains while maintaining excellent streetability.
Key Features:
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Engine Compatibility: GM LSA and LS9 engines (Camaros, Corvettes)
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Cam Type: Hydraulic roller
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Duration @ .050″: 229° intake / 25X° exhaust
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Lift: 0.636″ intake / 0.636″ exhaust
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Lobe Separation Angle: 116°
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Idle Characteristics: Ultra-aggressive idle
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Power Gains: Designed for high RPM applications with significant power increases
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Torque Converter: Aftermarket converter recommended
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Valve Spring Requirements: Requires .660″ lift dual valve springs with titanium retainers and hardened pushrods
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Cam Bolt Pattern: 3-bolt
This camshaft is developed using BTR’s in-house lobe designs, Spintron, and engine dyno testing to achieve optimal power curves while maintaining valvetrain stability and durability.
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