Roller Block Cams?

My understanding is most retro fit roller cams are usually sold with lifters because they are designed to be used in an engine that didn’t originally come with a roller cam. And those lifters have an oil band located such that it won’t become exposed by the shorter lifter bore on non roller cammed engines. And as mentioned above have the long snout for the cam eccentric. Call the cam company and ask if they’ll sell just the cam.