The Edelbrock Sure Seat valve springs (part #5821) are replacement springs for Edelbrock E‑205/E‑210 and Victor Jr. cylinder heads with hydraulic roller and flat tappet camshafts. Made of high‑quality spring wire and precision wound to close tolerances, the set is intended for use on the specified Edelbrock heads as a like‑for‑like replacement when those cam types are present.
Edelbrock V/S Victor Jr Flat Tappet SBC/SBF