Additional information
Outer Diameter (OD): 1.300 in
Spring ID (Outer): 0.900 in
Inner Diameter (ID): 0.616 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 250 lbs
Open Pressure @ 1.050 in: 860 lbs
Spring Rate: 813 lb/in
Coil Bind Height: 0.985 in
Max Valve Lift: 0.800 in
Recommended components:
Retainers (PAC 300 Series): R432
Retainers (PAC 500 Series): R532
Retainers (PAC 600 Series): R632
Spring Seats: S128, S138
Application notes:
High-lift LS performance applications.
racingsprings.com
Vendor Part Number: PAC-1335
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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