Additional information
Outer Diameter (Bottom): 1.290 in
Inner Diameter (Bottom): 1.034 in
Outer Diameter (Top): 0.906 in
Inner Diameter (Top): 0.650 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 130 lbs
Open Pressure @ 1.175 in: 370 lbs
Spring Rate: 385 lb/in
Coil Bind Height: 1.100 in
Max Valve Lift: 0.625 in
Recommended components:
Retainers (PAC 300 Series): R310, R311, R363
Retainers (PAC 500 Series): R510, R511
Spring Seats: S111
Application notes:
LS engine performance valve spring.
racingsprings.com
Vendor Part Number: PAC-1211X
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
Check also: dodací podmínky