Has anyone put roller lifters in an 848 head on a 261?
I assume you mean roller lifters in a 261 with an 848 head?
Or roller rockers in an 848 head on a 261?
Which head isn't relevant for a roller cam, and except for minor rocker oil changes any 235 or 261 should be the same for roller tappets.
This is a very, very expensive mod, and won't do anything useful (let alone cost-effective) for a street engine. With all the parts, you're not going to have much left of $1,000.
