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Howards Cams Pacaloy Mechanical Roller Valve Springs 98543 Springs, Roller, Dual, 1.550 in. O.D., 0.812 in. I.D., 550 lbs./in., 0.700 in. Maximum Lift, 1.100 in. Coil Bind, Set of 16

SKU: HRS98543

Valve Springs

Howards Cams Pacaloy Mechanical Roller Valve Springs 98543 Springs, Roller, Dual, 1.550 in. O.D., 0.812 in. I.D., 550 lbs./in., 0.700 in. Maximum Lift, 1.100 in. Coil Bind, Set of 16

SKU: HRS98543

Valve Springs

Sale ends in Calculating...

A$1,001.40 A$1,031.26
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

Howards Cams and PAC Racing joined forces to engineer Pacaloy mechanical roller valve springs—a premium line designed for high-impact and endurance race applications. Machined from proprietary high-tensile steel, these coils offer a 550 lb. spring rate and will deliver the highest quality performance you can expect from valve springs. Equip your ride with a set of Pacaloys.

Part Type

1.550 Dual Valve Springs .812 ID 16pk

Data: v4.2 - Upd: 2026-09-29 03:36:28

Specifications

Product Attributes - Brand
Howards Cams
Product Attributes - Manufacturer's Part Number
98543
Product Attributes - Part Type
Valve Springs
Product Attributes - Product Line
Howards Cams Pacaloy Mechanical Roller Valve Springs
Product Attributes - UPC
840793125814
Product Attributes - Valve Spring Style
Standard
Product Attributes - Number of Springs Per Valve
Dual
Product Attributes - Maximum Valve Lift (in.)
0.700 in.
Product Attributes - Retainers Included
No
Product Attributes - Outside Diameter of Outer Spring (in.)
1.550 in.
Product Attributes - Coil Bind Height (in.)
1.100 in.
Product Attributes - Damper Spring Included
No
Product Attributes - Spring Rate (lbs./in.)
550 lbs./in.
Product Attributes - Inside Diameter of Inner Spring (in.)
0.812 in.
Product Attributes - Locks Included
No
Product Attributes - Valve Stem Seals Included
No
Product Attributes - Valve Springs Coated
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 16.

Reference Information

Brand Name/s Howards Cams
StreetFX SKU hrs98543
SFX Item ID 5100758
Supplier Item Code 5100758
Manufacturer SKU 98543
Manufacturer UPC 840793125814
Alternative References HRC98543

Compatibility

Application Data
  • Installed Height (in.)1.900 in.
    Seat Pressure at Installed Height (lbs.)240 lbs.
    Open Height (in.)(application)1.200
    Open Pressure (lbs.)625 lbs.

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