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PAC Racing - PAC-1281X - 1.031 RPM Series Valve Springs - Beehive (16)

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Product description

Valve Spring - RPM Series - Ovate Beehive Spring - 245 lb/in Spring Rate - 1.208 in Coil Bind - 0.709 in / 1.031 in OD - Set of 16

Additional information
Outer Diameter (Bottom): 1.031 in
Inner Diameter (Bottom): 0.849 in
Outer Diameter (Top): 0.709 in
Inner Diameter (Top): 0.527 in
Installed Height (Valve Closed): 1.811 in
Seat Pressure @ 1.811 in: 80 lbs
Open Pressure @ 1.260 in: 215 lbs
Spring Rate: 245 lb/in
Coil Bind Height: 1.208 in
Max Valve Lift: 0.551 in

Recommended components:
Retainers (PAC 400 Series): R464

Application notes:
Ford Gen 3 Coyote 5.0L valve spring for increased RPM and endurance.

racingsprings.com

Vendor Part Number: PAC-1281X

Pac Racing Catalog -24
Pac Racing Catalog -15

Always verify specifications with the manufacturer and engine builder before final assembly.

The approximate size of the packed product or the sales package is 102 x 92 x 384 mm.

Engine
Ford Coyote

Spring Type
Beehive

Weight
1,1 kg(The product may have a light retail packaging.)

Availability
The product is currently not in stock at our warehouse. Available from our supplier. Estimated arrival at our warehouse 7 - 15 days from order, at the earliest 25.9.2026.

Delivery time?

If the product is available at the Vantaa warehouse, it can be picked up or delivered—usually already within the same day.

When the product shows an estimated delivery time of 7–15 days, this is how the supplier‑warehouse order progresses.

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