Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Howards Cams Electro Polished Pro-Alloy Mechanical Roller Valve Springs 98644
Part Number: HRS-98644
Howards Cams Electro Polished Pro-Alloy Mechanical Roller Valve Springs
Valve Springs, Dual, 1.550 in. Outside Diameter, 508 lbs./in. Rate, 1.080 in. Coil Bind Height, Set of 16
See More Specifications
|
Check the Fit
Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Need It Sooner? We recommend these similar substitute parts:
Overview
Brand:
Manufacturer's Part Number:
98644
Part Type:
Product Line:
Summit Racing Part Number:
HRS-98644
UPC:
840793126040
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.750 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.550 in.
Coil Bind Height (in.):
1.080 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
508 lbs./in.
Inside Diameter of Inner Spring (in.):
0.815 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Quantity:
Sold as a set of 16.
Installed Height (in.):
1.880 in.
Seat Pressure at Installed Height (lbs.):
230 lbs.
Open Height (in.)(application):
1.250
Open Pressure (lbs.):
550 lbs.
Remanufactured:
No
Howards Cams Electro Polished Pro-Alloy Mechanical Roller Valve Springs
When only the best will do, depend on these Howards Cams Electro Polished Pro-Alloy mechanical roller valve springs! Howards Cams took their state-of-the-art Pro-Alloy roller valve springs one step further with electro polishing, which enhances the material even further. By reducing localized stress areas, these springs offer even greater life expectancy.
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Some parts are not legal for use in California or other states with similar laws / regulations
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
