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PAC Racing - PAC-1224 - 1.625 Dual Valve Springs (16)

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Product description

Valve Spring - 1200 Series Drag Race - Dual Spring - 629 lb/in Spring Rate - 1.100 in Coil Bind - 1.625 in OD - Set of 16

Additional information
Outer Diameter: 1.625 in
Outer Inner Diameter: 1.175 in
Middle Inner Diameter: N/A
Inner Diameter: 0.851 in
Installed Height (Valve Closed): 2.000 in
Seat Pressure @ 2.000 in: 275 lbs
Open Pressure @ 1.150 in: 810 lbs
Spring Rate: 629 lb/in
Max Valve Lift: 0.850 in
Coil Bind Height: 1.100 in

Recommended components:
Retainers (PAC 400 Series): R404
Retainers (PAC 500 Series): R504
Spring Seats: S101, S102

Application notes:
Bracket racing applications.

racingsprings.com

Vendor Part Number: PAC-1224

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 91 x 387 mm.

Engine
Universal

Spring Type
Dual

Weight
2,7 kg
(with sales package 2,67 kg)

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 28.10.2026.

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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