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PAC Racing - PAC-1312 - 1.106 Dual Valve Springs 1300 Series (16)

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The price includes any freight from the supplier to the Store

Product description

Valve Spring - 1300 Series Drag Race - Dual Spring - 400 lb/in Spring Rate - 0.850 in Coil Bind - 1.106 in OD - Set of 16

Additional information
Outer Diameter (OD): 1.106 in
Spring ID (Outer): 0.810 in
Inner Diameter (ID): 0.574 in
Installed Height (Valve Closed): 1.700 in
Seat Pressure @ 1.700 in: 150 lbs
Open Pressure @ 1.000 in: 430 lbs
Spring Rate: 400 lb/in
Coil Bind Height: 0.850 in
Max Valve Lift: 0.700 in

Recommended components:
Retainers (PAC 400 Series): R439
Retainers (PAC 500 Series): R539
Spring Seats: S132

Application notes:
FMOD 4.6L 4V application.

racingsprings.com

Vendor Part Number: PAC-1312

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 96 x 388 mm.

Spring Type
Dual

Weight
1,2 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 15.9.2026.

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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