Additional information
Outer Diameter (OD): 1.695 in
Spring ID (Outer): 1.195 in
Middle Diameter: 0.871 in
Inner Diameter (ID): 0.635 in
Installed Height (Valve Closed): 2.300 in
Seat Pressure @ 2.300 in: 500 lbs
Open Pressure @ 1.200 in: 1500 lbs
Spring Rate: 900 lb/in
Coil Bind Height: 1.140 in
Max Valve Lift: 1.100 in
Recommended components:
Retainers (PAC 400 Series): R401, R402
Retainers (PAC 500 Series): R501, R502
Retainers (PAC 600 Series): R601, R602
Spring Seats: S109, S133
Application notes:
Pro Stock and Mountain Motor applications.
racingsprings.com
Vendor Part Number: PAC-1353
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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