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Howards Cams Pro-Alloy Mechanical Roller Valve Springs 98048
Part Number: HRS-98048
Howards Cams Pro-Alloy Mechanical Roller Valve Springs
Valve Springs, Triple, 1.660 in. Outside Diameter, 745 lbs./in. Rate, 1.145 in. Coil Bind Height, Set of 16
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Estimated Ship Date: Dec 23, 2026
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Overview
Brand:
Manufacturer's Part Number:
98048
Part Type:
Product Line:
Summit Racing Part Number:
HRS-98048
UPC:
840793124954
Valve Spring Style:
Standard
Number of Springs Per Valve:
Triple
Maximum Valve Lift (in.):
0.895 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.660 in.
Coil Bind Height (in.):
1.145 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
745 lbs./in.
Inside Diameter of Inner Spring (in.):
0.635 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold as a set of 16.
Installed Height (in.):
2.100 in.
Seat Pressure at Installed Height (lbs.):
350 lbs.
Open Height (in.)(application):
1.200
Open Pressure (lbs.):
1,020 lbs.
Remanufactured:
No
Howards Cams Pro-Alloy Mechanical Roller Valve Springs
Howards Cams' Pro-Alloy is a specially developed low-stress, high-endurance material. Years of development, experience, and testing have gone into creating these Pro-Alloy mechanical roller valve springs. They have a low fatigue rate compared to most other roller springs on the market. These springs exceed H-11 Vasco-Jet specifications and are cycle-tested to 12 million cycles with no breakage.
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