Additional information
Outer Diameter (Bottom): 1.307 in
Inner Diameter (Bottom): 1.072 in
Outer Diameter (Top): 0.885 in
Inner Diameter (Top): 0.650 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 135 lbs
Open Pressure @ 1.175 in: 348 lbs
Spring Rate: 340 lb/in
Coil Bind Height: 1.115 in
Max Valve Lift: 0.625 in
Recommended components:
Retainers (PAC 300 Series): R310, R311, R362, R363
Retainers (PAC 500 Series): R510, R511
Spring Seats: S111
Application notes:
Higher rate and frequency for aggressive LS camshafts. Drop-in design.
racingsprings.com
Vendor Part Number: PAC-1219
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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Check also: leveringsbetingelser