Brazilian Dodge Dart 76 (similar to 69 usa)

If the piston is smooth and free of marks and your groove is clean and free of burrs then you should be OK. The piston seals against the square edged ring that installs in the groove.

When are we going for a cruise? :D

Looking good Alex.

Pistons are new... tomorrow brakes will be in place :D

Don't know when I'll ride a few kilometers... but I can't wait for this day :D