Valve Rocker Arm 240Z 260Z 280Z 280ZX 510New stock replacement cylinder head valve rocker arm for 1970 83 Datsun 240Z, 260Z, 280Z, 280ZX and 510. Will fit all "L" series engines 4 and 6 cylinder. We recommend high zinc (ZDDP) oil for the Datsun "L" series engines and high ZDDP oil is a must with higher than stock valve spring pressures. See PT# 800 1770 for high zinc oil.
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