Piston rings

[71Paisley]

Just ordered forged Icon FHR pistons for my 440. The builder asked for a molly top ring and a napier 2nd ring. It's a. 60 over piston. 5/64 , 5/64 , 3/16 How are people searching for the Napier ring ? In cant find enough information on ring profile from Summit or Jegs I put a couple emails out to total seal and Hastings. Maybe I'll hear from them . Is there an easier way that I'm unfamiliar with. TIA

 

[vintage chromoly]

You’ll, most likely, have to call total seal.
They will put a pack together for what you’re doing and include the Napier 2nd.

I just went through this.

 

[69Bee]

A Napier 2nd ring has a hook cut out to act as an oil scraper, and I believe it could just be a square cut out also.

 

[66Satellite47]

These diagrams are so informative. Many thanks.

 

[toolmanmike]

I learned something today. Thanks