These are the genuine, original equipment (OEM) gaskets that seal the fuel pump to the insulator block and the head. Sold individually; 2 require per car*.
If you are using an electrical fuel pump and a fuel pump block off plate, and you are retaining the insulator due to your hardware, you will still need 2 of these gaskets. If you are using a block off plate and have removed the insulator, you will only need 1 gasket.
Datsun 240Z, 260Z
1970, 1971, 1972, 1973, 1974