Rubber type carburetor insulators for the 44PHH Mikuni Solex carbs on the Datsun Roadsters
Specifically for the 2000 U20 but ~should~ work on most if not all 1600 R16 Solex/Mikuni manifolds
Will also work on some aftermarket manifolds that have oval holes, or that have room on the flange to oval the holes.
Should also work on 40PHH carbs, but you will need to confirm this for yourself.
Buy at your own risk for 40PHH or any other carburetors other than 44PHH
These insulators have the staggered stud pattern with the wider apart studs on the manifold side
The closer together stud pattern is on the carb side, and the studs are the same distance apart on the closer together side as both sides of the Nismo insulator 16174-20101
Gaskets required for these insulators are 16175-25501 for the wider stud pattern (intake) side, and 16176-20101 for the narrower stud pattern (carb) side
These gaskets may have limited or NO availabilty. Check both part numbers using the search box on the front page of this site
If they are still available, they will show up there
These Genuine Nissan carb insulators are still available from Nissan as of Aug 2017