Ditto on the Schneider regrind on your old cam. The Melling CCS-1 or the Elgin E-293S cams are both good, but they're almost impossible to find.
The E-293S is a duplicate of the 261 cam- - -the only difference is the clearance specifications. Bring me your stripped block with the main bearing caps on it and I'll be glad to machine it for the full circle seal. They're usually available on Ebay at a much better price than this supplier. I'm 5 miles from the Alabama state line, close to I-65.

www.motion.com/products/sku/01315653

www.ebay.com/itm/154260983108?

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!