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Outer Diameter: 1.260 in
Outer Inner Diameter: 0.860 in
Outer Damper: Yes
Inner Diameter: 0.770 in
Installed Height (Valve Closed): 1.750 in
Seat Pressure @ 1.750 in: 150 lbs
Open Pressure @ 1.200 in: 460 lbs
Spring Rate: 540 lb/in
Max Valve Lift: 0.550 in
Coil Bind Height: 1.115 in
Recommended components:
Retainers (PAC 300 Series): R349
Retainers (PAC 600 Series): R649
Application notes:
Extreme use and endurance-focused spring over standard PAC-1201.
racingsprings.com
Teilenummer des Anbieters: PAC-1201X
Pac Racing Catalog -24
Pac Racing Catalog -15
Always verify specifications with the manufacturer and engine builder before final assembly.
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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Check also: Geschäftsbedingungen