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PAC Racing 1900 Series Hot Rod Valve Springs
Valve Springs, 1900 Series Hot Rod, Dual, 1.290 in. O.D., 370 lbs./in. Rate, 1.010 in. Coil Bind Height, Set of 16
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
PAC-1904-16
Part Type:
Product Line:
Summit Racing Part Number:
RSC-PAC-1904-16
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.625 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.290 in.
Coil Bind Height (in.):
1.010 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
370 lbs./in.
Inside Diameter of Outer Spring (in.):
0.950 in.
Inside Diameter of Inner Spring (in.):
0.694 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold as a set of 16.
Make:
CHEVROLET
Engine Family:
Chevy small block Gen III/IV (LS-based engines)
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
150 lbs.
Open Height (in.)(application):
1.125
Open Pressure (lbs.):
400 lbs.
Remanufactured:
No
PAC Racing 1900 Series Hot Rod Valve Springs
PAC Racing 1900 Series Hot Rod valve springs are great for replacing the valvetrain components on your hot rod car or truck build! Every one of these 1900 Series Hot Rod valve springs are designed with performance and quality in mind, using the highest quality components available!
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