Additional information
Outer Diameter: 1.538 in
Inner Diameter (Outer): 1.140 in
Damper: Yes
Inner Diameter (Inner): 0.752 in
Installed Height (Valve Closed): 1.850 in
Seat Pressure @ 1.850 in: 157 lbs
Open Pressure @ 1.200 in: 440 lbs
Spring Rate: 436 lb/in
Max Valve Lift: 0.650 in
Coil Bind Height: 1.135 in
Recommended components:
Retainers (PAC 300 Series): R387
Spring Seats: S117, S118
Application notes:
Hydraulic flat tappet camshaft applications.
racingsprings.com
Vendor Part Number: PAC-1916
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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