Additional information
Outer Diameter (OD): 1.500 in
Spring ID (Outer): 1.050 in
Inner Diameter (ID): 0.726 in
Installed Height (Valve Closed): 2.175 in
Seat Pressure @ 2.175 in: 420 lbs
Open Pressure @ 1.175 in: 1200 lbs
Spring Rate: 780 lb/in
Coil Bind Height: 1.130 in
Max Valve Lift: 1.000 in
Recommended components:
Retainers (PAC 400 Series): R408
Retainers (PAC 500 Series): R508, R509, R544
Retainers (PAC 600 Series): R608, R609, R644
Spring Seats: S110, S126, S134, S132
Application notes:
TAFC and Pro-Mod alcohol engine applications.
racingsprings.com
Vendor Part Number: PAC-1355
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