Rocker arms should be replaced any time an engine is rebuilt or when a new camshaft (stock or performance) is installed. Used rocker arms develop a wear pattern or angle which will exert itself right into your new cam. This set of 12 new L6 rocker arms is required for the warranty on new camshaft installations.
Datsun 240Z, 260Z, 280Z, 280ZX
Datsun S30, S130
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983