Additional information
Outer Diameter: 1.545 in
Outer Inner Diameter: 1.131 in
Outer Damper: Yes
Inner Diameter: 0.757 in
Installed Height (Valve Closed): 1.900 in
Seat Pressure @ 1.900 in: 175 lbs
Open Pressure @ 1.275 in: 442 lbs
Spring Rate: 428 lb/in
Max Valve Lift: 0.625 in
Coil Bind Height: 1.185 in
Recommended components:
Retainers (PAC 300 Series): R315
Retainers (PAC 500 Series): R515
Retainers (PAC 600 Series): R615
Spring Seats: S117, S118
Application notes:
Flat tappet camshaft applications.
racingsprings.com
Vendor Part Number: PAC-1294
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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