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Howards Cams Performance Valve Spring and Retainer Kits 98511-K31 Kits, Performance, Single, Conical, 1.485 in. O.D., 355 lbs./in., 1.150 in. Coil Bind Height, 7 Degree Locks, Retainers, Kit

SKU: HRS98511-K31

Valve Springs

Howards Cams Performance Valve Spring and Retainer Kits 98511-K31 Kits, Performance, Single, Conical, 1.485 in. O.D., 355 lbs./in., 1.150 in. Coil Bind Height, 7 Degree Locks, Retainers, Kit

SKU: HRS98511-K31

Valve Springs
A$530.31
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Upgrade or change your cam and lifter set with Howards Cams performance valve spring and retainer kits. They offer many configurations to tailor-make your valvetrain. Each package includes a set of Howards Cams performance valve springs plus matching retainers and heat-treated valve locks. Order these superior-quality components designed for your application to get the build you want in a complete cam kit.

Part Type

1.485 Valve Springs/ Locks & Retainer Kit

Data: v4.2 - Upd: 2026-09-29 03:36:26

Specifications

Product Attributes - Brand
Howards Cams
Product Attributes - Manufacturer's Part Number
98511-K31
Product Attributes - Part Type
Valve Springs
Product Attributes - Product Line
Howards Cams Performance Valve Spring and Retainer Kits
Product Attributes - UPC
840793136759
Product Attributes - Valve Spring Style
Conical
Product Attributes - Number of Springs Per Valve
Single
Product Attributes - Maximum Valve Lift (in.)
0.590 in.
Product Attributes - Retainers Included
Yes
Product Attributes - Retainer Material
Chromoly steel
Product Attributes - Outside Diameter of Outer Spring (in.)
1.485 in.
Product Attributes - Coil Bind Height (in.)
1.150 in.
Product Attributes - Damper Spring Included
Yes
Product Attributes - Spring Rate (lbs./in.)
355 lbs./in.
Product Attributes - Inside Diameter of Outer Spring (in.)
1.061 in.
Product Attributes - Locks Included
Yes
Product Attributes - Lock Material
Steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Style
7 degree
Product Attributes - Valve Stem Seals Included
No
Product Attributes - Valve Springs Coated
No
Product Attributes - Valve Stem Diameter (in.)
0.375 in.
Product Attributes - Valve Stem Diameter (mm)
9.53mm
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.

Reference Information

Brand Name/s Howards Cams
StreetFX SKU hrs98511-K31
SFX Item ID 5099474
Supplier Item Code 5099474
Manufacturer SKU 98511-K31
Manufacturer UPC 840793136759
Alternative References HRC98511-K31

Compatibility

Application Data
  • 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.

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