Trick Flow by PAC Racing Beehive Valve Springs are manufactured to Trick Flow’s rigorous, world-class standards. Every spring is CNC coiled from high tensile-strength, extra-durable Pacaloy™ chrome-silicon steel and double shot-peened beyond Aerospace Material Specifications (AMS) reliability criteria. These beehive springs allow you to drop in a more aggressive cam without machining your spring seats. The springs feature heavyweight spring rates but still fit inside the stock valve seats and can be used with the stock retainers. A welcome upgrade over the factory springs for any N/A or FI application.

Product Specs:
Number of Springs Per Valve: Single
Outside Diameter of Outer Spring (in): 1.025 in./0.862 in.
Coil Bind Height (in): 0.943 in.
Damper Spring Included: No
Spring Rate (lbs/in): 209 lbs./in.
Inside Diameter of Outer Spring (in): 0.537 in./0.700 in.
Valve Spring Style: Beehive
Valve Springs Coated: No
Quantity: Sold as a set of 32.
Notes: Ford 5.0L DOHC 4V with OEM VVT; up to .575 in. lift.Learn More