Like a lot of brands, Nissan supports some classic models through various programs and specialized parts. Essentially, that means classic car owners have an OEM route to getting new-old stock or upgraded parts for old cars. Sometimes, those parts are only available for certain markets. In this case, a Nissan owner and Redditor wanted a limited-production DOHC conversion kit for the S30/S31 Fairlady Z (sold in the US as the 240Z, 260Z, and 280Z) L-series inline-six engine. Sounds simple enough, right?
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