Small world, just two hours ago I took the old Fram canister I got with a core motor from a '55 apart to start cleaning it up to install on the '61. It IS a Fram cannister with remnants of orange paint and the crimped bottom. The filter element inside of it(probably for the last 35 years)has clearly marked "AC P-115" then below that "MS 35346" and below that "Heavy Duty Junior Oil Filter" (heavy duty junior, seems like an oxymoron). Perhaps you could cross reference the AC P-115. BTW, it is 5" high, and about 4.25" in diameter. HTH