Additional information
Outer Diameter (Bottom): 1.345 in
Inner Diameter (Bottom): 1.095 in
Outer Diameter (Top): 0.900 in
Inner Diameter (Top): 0.650 in
Installed Height (Valve Closed): 2.050 in
Seat Pressure @ 2.050 in: 175 lbs
Open Pressure @ 1.400 in: 450 lbs
Spring Rate: 423 lb/in
Coil Bind Height: 1.346 in
Max Valve Lift: 0.650 in
Recommended components:
Retainers (PAC 300 Series): R310, R311, R374
Retainers (PAC 500 Series): R510, R511
Spring Seats: S111
Application notes:
Hemi 6.4L drop-in valve spring.
racingsprings.com
Vendor Part Number: PAC-1232X
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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