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Howards Cams Performance Hydraulic Flat Tappet Valve Springs 98511-12
Part Number: HRS-98511-12
Howards Cams Performance Hydraulic Flat Tappet Valve Springs
Valve Spring, Performance Hydraulic Flat Tappet, Single with Damper, 1.485 in. O.D., 1.061 in. I.D., 355 lbs/in., 0.590 in. Maximum Lift, Set of 16
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Estimated Ship Date: Dec 23, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
98511-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-98511-12
Valve Spring Style:
Standard
Number of Springs Per Valve:
Single
Maximum Valve Lift (in.):
0.590 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.485 in.
Coil Bind Height (in.):
1.150 in.
Damper Spring Included:
Yes
Spring Rate (lbs./in.):
355 lbs./in.
Inside Diameter of Outer Spring (in.):
1.061 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold as a set of 16.
Installed Height (in.):
1.800 in.
Seat Pressure at Installed Height (lbs.):
115 lbs.
Open Height (in.)(application):
1.250
Open Pressure (lbs.):
310 lbs.
Howards Cams Performance Hydraulic Flat Tappet Valve Springs
Howards Cams Performance Hydraulic Flat Tappet valve springs are made from top quality materials, using the latest manufacturing techniques. These valve springs are coiled, stress relieved, deburred, shot-peened and heat-treated to strict standards in the finest facilities available. If you're looking for reliable, consistent valve spring performance, Howards Cams Performance Hydraulic Flat Tappet springs are a fantastic choice!
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