Kelford SR20DET Valve Springs & Retainers | Nissan Silvia 180SX AustraliaNISSAN SR20 DET. Premium quality ovate wire, Beehive valve spring set with Titanium retainers. Featuring nano peen and gold nitride surface finish process' for the ultimate strength. Suits high RPM, high boost turbo motors. Drop in on the OEM spring base to give 95lb seat pressure. 15. 00mm Maximum lift.
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