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PAC Racing - PAC-1529 - 1.284 Dual Valve Springs (16)

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Product description

Valve Spring - 1500 Series Circle Track - Dual Spring - 560 lb/in Spring Rate - 1.090 in Coil Bind - 1.284 in OD - Set of 16

Additional information
Outer Diameter: 1.284 in
Inner Diameter (Outer): 0.900 in
Inner Diameter (Inner): 0.630 in
Installed Height (Valve Closed): 1.900 in
Seat Pressure @ 1.900 in: 180 lbs
Open Pressure @ 1.150 in: 600 lbs
Spring Rate: 560 lb/in
Max Valve Lift: 0.750 in
Coil Bind Height: 1.090 in

Recommended components:
Retainers (PAC 300 Series): R432
Retainers (PAC 500 Series): R532
Retainers (PAC 600 Series): R632
Spring Seats: S128, S138

Application notes:
LS high-performance, high-endurance circle track valve spring. Designed for high RPM applications with high frequency stability.

racingsprings.com

Vendor Part Number: PAC-1529

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 89 x 388 mm.

Weight
1,8 kg(The product may have a light retail packaging.)

Availability
Available to order from the supplier. Estimated time of arrival to us 7 - 15 day`s from order, at the earliest 1.2.2026.

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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