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PAC Racing - PAC-1237X - 1.274 Dual Valve Springs GM LS (16)

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Produkt beskrivelse

Valve Spring - RPM Series - Dual Spring - 550 lb/in Spring Rate - 1.045 in Coil Bind - 1.274 in OD - GM LS-Series - Set of 16

Additional information
Outer Diameter: 1.274 in
Inner Diameter (Outer): 0.900 in
Inner Diameter (Inner): 0.630 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 200 lbs
Open Pressure @ 1.100 in: 585 lbs
Spring Rate: 550 lb/in
Max Valve Lift: 0.700 in
Coil Bind Height: 1.045 in

Recommended components:
Retainers (PAC 400 Series): R432
Retainers (PAC 500 Series): R532
Retainers (PAC 600 Series): R632
Spring Seats: S128, S138

Application notes:
LS spring for drag racing and street/strip use. High rate and high frequency design.

racingsprings.com

Vendor Part Number: PAC-1237X

Pac Racing Catalog -24
Pac Racing Catalog -15

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

Den omtrentlige størrelsen på det pakkede produktet eller salgspakken er 102 x 89 x 384 mm.

Engine
Chevy LS

Spring Type
Dual

Vekt
1,8 kg(Produktet kan ha en lett salgspakke.)

Tilgjengelighet
Omtrent 7 - 15 dag(er) fra bestillingen, tidligst 11.8.2026.

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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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