Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

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The Edelbrock #5703 Sure Seat Valve Spring for S/B Chevy O.E Cast iron cylinder heads are made of highest quality spring wire and precision wound to close tolerances, our Sure Seat Valve Spring sets are for use on original equipment heads when installing Edelbrock Performer-Plus, Performer RPM and Torker-Plus camshafts. These are the same high-performance springs used on Edelbrock Performer and RPM cylinder heads. For camshaft warranty compliance, use only the springs recommended by Edelbrock for each camshaft application.


Availability Available
Grade Type Performance
Installed Pressure 80
Spring Type Single Coil
Coil Bind Height 1.150 in
Open Height 0.490 in
Installed Height 1.700 in
Closed Pressure 80
Camshaft Type Hydraulic Flat Tappet
Open Pressure 285
Closed Height 1.700 in
Application Application Specific
UPC 00085347057030
Availability Note Available to Order
Emissions Code N/A
Hazardous Materials Warning WARNING: This product can expose you to Chrome, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • Non-Rotator
  • Recommended Edelbrock Cams: 5002, 7102
Inside Diameter 0.875 in
Material Steel
Outside Diameter 1.265 in