Additional information
Outer Diameter: 1.539 in
Outer Inner Diameter: 1.125 in
Outer Damper: Yes
Inner Diameter: 0.731 in
Installed Height (Valve Closed): 1.950 in
Seat Pressure @ 1.950 in: 200 lbs
Open Pressure @ 1.250 in: 550 lbs
Spring Rate: 500 lb/in
Max Valve Lift: 0.700 in
Coil Bind Height: 1.110 in
Recommended components:
Retainers (PAC 300 Series): R315
Retainers (PAC 500 Series): R515
Retainers (PAC 600 Series): R615
Spring Seats: S117, S118
Application notes:
General endurance spring for high-lift flat tappet camshaft applications.
racingsprings.com
Vendor Part Number: PAC-1227
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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