Additional information
Outer Diameter: 1.280 in
Inner Diameter (Outer): 0.925 in
Inner Diameter (Inner): 0.655 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 180 lbs
Open Pressure @ 1.100 in: 480 lbs
Spring Rate: 425 lb/in
Max Valve Lift: 0.700 in
Coil Bind Height: 1.055 in
Recommended components:
Retainers (PAC 300 Series): R355
Retainers (PAC 400 Series): R455
Retainers (PAC 600 Series): R655
Spring Seats: S121, S141
Application notes:
LS valve spring for aftermarket cylinder heads.
racingsprings.com
Vendor Part Number: PAC-1222X
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.
Kontaktformular
Check also: leveringsbetingelser