Edelbrock part #9758 Valve Seal kit is a replacement valve seal kit for Edelbrock S/B Chevy, S/B Ford Victor Jr. heads and B/B Chrysler Victor Heads, with .530" guides. Set of 16.
Edelbrock part #9759 Valve Seal kit is a replacement valve seal kit for Edelbrock 390-428 FE Ford RPM Cylinder Heads with the current .562" seal mount diameter. These are hi-performance Viton seals with a steel body. Set of 16.