Craig is correct, the Fairlady 240Z-L is quite rare, as most opted for the homologation special with the G-nose extension and fender flares. The Fairlady 240Z-L and Fairlady 240ZG were introduced in 1971, the home market didn't get the 2.4ltr until a year after export markets.
My knowledge of later cars isn't great (S130Z's), but I believe in Japan the 2.8ltr arrived with the Fairlady 280z.