Additional information
Outer Diameter (OD): 1.514 in
Spring ID (Outer): 1.050 in
Inner Diameter (ID): 0.726 in
Installed Height (Valve Closed): 2.200 in
Seat Pressure @ 2.200 in: 425 lbs
Open Pressure @ 1.200 in: 1288 lbs
Spring Rate: 863 lb/in
Coil Bind Height: 1.160 in
Max Valve Lift: 1.000 in
Recommended components:
Retainers (PAC 500 Series): R508, R509, R544
Retainers (PAC 600 Series): R608, R609, R644
Spring Seats: S110, S126, S134, S132
Application notes:
High-rate spring for aggressive valvetrains and high RPM.
racingsprings.com
Vendor Part Number: PAC-1331
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.
Kontaktní formulář
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