NOS ring set. Price is for one (1) set for 6 pistons. I have three different sizes. Boxes have been opened and inspected for corrosion. All rings are as new. Double check to make sure these are the ones you need. 

 66-78 Chevy Truck 6cyl

1953-62 Chevy 235 6cyl

  Below are applications copied from Hastings site. 

FORD MOTORS - 3.5L / FORD TRUCKS - 3.5L OHV / GENERAL MOTORS- Cars - 3.9L / GENERAL MOTORS-Trucks - 3.9L