Stan,
My JC Higgins did NOT come drilled and tapped for a receiver site. D/T for scope bases only. Bases for this rifle can be a little tricky because hole spacing is different for the front and rear ring.
I have a couple of articles written about this rifle and some accumulated research if you or any other forum members could use some additional information. PM me an email address and I'll head a couple of PDF files your way.
BTW although my Higgins spent most of its life as a factory 30/06; I recently had it re-barreled/chambered into a 260 Remington, with some action tweaking to get it to feed reliably.