Oil filter for a '66 to '78 425 / 455 V8
Posted: Mon May 22, 2017 9:02 am
Hello,
If you look up the oil filter for a 1966 to 1978 Toro, it will come back with a Delco PF -24 which is the same as the old Purolator filter number PER-33. The PER-33 / PF-24 is a shorter (less volume) version of the old PER-5. I like the 5 better than the 33 simply because it is a bigger filter with more filtering area plus it allows the engine to carry more oil in the system. Besides being better for cooling the oil, that extra 1/2 quart of oil can come in handy if you have a leaking or burning issue or if you use an additive. I don't think that they make a new version of the PER-5, but I just bought a bunch of the 5s off eBay for cheap. The threads are the same 13/16 and the rubber gasket diameter is the same, only the height is different, the PER-5 is about 50% again longer than the PER-33 or Delco PF-24.
If you look up the oil filter for a 1966 to 1978 Toro, it will come back with a Delco PF -24 which is the same as the old Purolator filter number PER-33. The PER-33 / PF-24 is a shorter (less volume) version of the old PER-5. I like the 5 better than the 33 simply because it is a bigger filter with more filtering area plus it allows the engine to carry more oil in the system. Besides being better for cooling the oil, that extra 1/2 quart of oil can come in handy if you have a leaking or burning issue or if you use an additive. I don't think that they make a new version of the PER-5, but I just bought a bunch of the 5s off eBay for cheap. The threads are the same 13/16 and the rubber gasket diameter is the same, only the height is different, the PER-5 is about 50% again longer than the PER-33 or Delco PF-24.