Upgrade your 2011–2017 Ford 5.0L Coyote engine with the PAC Racing PAC-1234X Beehive Valve Springs. These drop-in springs are engineered to handle increased RPM and boost levels, making them ideal for performance builds utilizing aftermarket camshafts or forced induction setups. The ovate wire and beehive design reduce valvetrain mass and improve harmonic control, ensuring reliable performance under demanding conditions.
Key Features:
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Drop-In Fitment: No machining required for installation on Gen 1 and Gen 2 Coyote engines.
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Enhanced Performance: Supports up to 0.575" valve lift, suitable for high-RPM and boosted applications.
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Durable Construction: Manufactured from premium materials for longevity and consistent performance.
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Optimized Design: Beehive shape and ovate wire reduce valvetrain mass and improve spring dynamics.
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Specifications:
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Installed Height: 1.575"
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Seat Pressure: 92 lbs @ 1.575"
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Open Pressure: 218 lbs @ 1.050"
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Maximum Valve Lift: 0.575"
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Spring Rate: 240 lbs/in
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Coil Bind Height: 0.941"
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Outer Diameter (Base): 1.021"
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Inner Diameter (Base): 0.698"
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Outer Diameter (Top): 0.848"
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Inner Diameter (Top): 0.525"
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Mass: 33.5 grams per spring
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Whether you're building a naturally aspirated screamer or a boosted beast, the PAC-1234X valve springs provide the reliability and performance needed to push your Coyote engine to the next level.