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PAC Racing - PAC-1218X - 1.290 Valve Springs - Ovate Beehive (16)

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Product description

Valve Spring - RPM Series - Ovate Beehive Spring - 313 lb/in Spring Rate - 1.140 in Coil Bind - 0.885 in / 1.290 in OD - Set of 16

Additional information
Outer Diameter (Bottom): 1.290 in
Inner Diameter (Bottom): 1.055 in
Outer Diameter (Top): 0.885 in
Inner Diameter (Top): 0.650 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 140 lbs
Open Pressure @ 1.200 in: 328 lbs
Spring Rate: 313 lb/in
Coil Bind Height: 1.115 in
Max Valve Lift: 0.600 in

Recommended components:
Retainers (PAC 300 Series): R310, R311, R363
Retainers (PAC 500 Series): R510, R511
Spring Seats: S111

Application notes:
LS drop-in spring with higher load than 1218 for performance use.

racingsprings.com

Vendor Part Number: PAC-1218X

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 103 x 92 x 388 mm.

Engine
Universal

Spring Type
Beehive

Weight
1,5 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 14.8.2026.

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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