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Howards Cams Stock Diameter Performance Valve Springs 98636-1
Part Number: HRS-98636-1
Howards Cams Stock Diameter Performance Valve Springs
Valve Spring, Dual, 1.530 in. Outside Diameter, 348 lbs./in. Rate, 1.150 in. Coil Bind Height, Each
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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
98636-1
Part Type:
Product Line:
Summit Racing Part Number:
HRS-98636-1
UPC:
840793125975
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.670 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.530 in.
Coil Bind Height (in.):
1.150 in.
Damper Spring Included:
Yes
Spring Rate (lbs./in.):
348 lbs./in.
Inside Diameter of Inner Spring (in.):
0.700 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold individually.
Installed Height (in.):
1.875 in.
Seat Pressure at Installed Height (lbs.):
130 lbs.
Open Height (in.)(application):
1.300
Open Pressure (lbs.):
330 lbs.
Remanufactured:
No
Howards Cams Stock Diameter Performance Valve Springs
Howards Cams stock diameter performance valve springs deliver increased valvetrain stability and performance over your OEM springs. Made from premium chrome silicone, these springs are coiled and heat-treated in the finest facilities available. They're available for most performance hydraulic and mild mechanical flat tappet applications.
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