They are not interchangeable. An engine designed for a rope seal cannot use a rubber seal, no matter who makes it. The depth of the grooves are different. Either one can be machined for the right fix- - - -a full circle lip seal.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!