I think the ijectors are the same, cause when you order them they dont ask you if you have a HO or non-HO. So I would say yes you can put tips on them and install them on either engines. I didn't have any issues ordering/installing Jammer 3 tips on my non-HO.
I think the difference with the HO and non-HO where the injector pumps and ECM programs. I know when you order a injector pump they ask you if its HO or not.