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GSC Power Division cylindrical valve springs for high-performance Subaru EJ257 and Toyota 2JZ engines deliver reliable valve control where factory springs may be marginal. Specified to fit GSC part numbers GSC5043 and GSC5044, these springs are intended for applications needing robust valve retention under increased lift or RPM. Use them when matching compatible retainers and recommended hardware from the manufacturer.
GSC P-D Subaru EJ257 / Toyota 2JZ (Fits GSC5043 / GSC5044) Cylindrical Valve Spring
