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Instruction Sheets for Part Number EDL-5821
Edelbrock Sure Seat Valve Springs
Valve Springs, Sure Seat, Standard Dual Style, 0.600 in. Maximum Lift, 1.540 in. O.D., 1.900 in. Installed Height, Non-rotator, Various, Set of 16
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Need It Sooner? We recommend these similar substitute parts:
Howards Cams Performance Street/Strip Valve Springs 98632-1
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Estimated Ship Date: Monday 10/26/2026
Overview
Brand:
Manufacturer's Part Number:
5821
Part Type:
Product Line:
Summit Racing Part Number:
EDL-5821
UPC:
085347058211
Valve Spring Style:
Standard
Number of Springs Per Valve:
Dual
Maximum Valve Lift (in.):
0.600 in.
Retainers Included:
No
Outside Diameter of Outer Spring (in.):
1.540 in.
Coil Bind Height (in.):
1.130 in.
Damper Spring Included:
No
Spring Rate (lbs./in.):
333 lbs./in.
Inside Diameter of Outer Spring (in.):
0.760 in.
Locks Included:
No
Valve Stem Seals Included:
No
Valve Springs Coated:
No
Remanufactured:
No
Quantity:
Sold as a set of 16.
Notes:
Non-rotator spring. Open pressure is being measured at 0.600 in. lift.
Installed Height (in.):
1.900 in.
Seat Pressure at Installed Height (lbs.):
145 lbs.
Open Height (in.)(application):
1.300
Open Pressure (lbs.):
345 lbs.
Edelbrock Sure Seat Valve Springs
Upgrading your camshaft? Get maximum performance with matching valve springs. Edelbrock's Sure Seat valve springs are made of the highest quality spring wire and are precision-wound to exact specifications. They are designed for use on OEM heads when used in conjunction with their Performer-Plus, Performer RPM, and Torker-Plus camshafts. They'll work with the stock rotators (if applicable) and fit the spring pockets perfectly.
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