Lifter bore bushings

Are they necessary? I see a lot of confliction when it comes to this subject, and would like more input.

I've kind of already talked about my build... late 70's 440 block, K1 4.150" stroker crank, Scat H-beams (Chevy style 2.200" rod pin, 6.700" length), Most likely Diamond custom blower pistons, RPM heads reworked for 2.19" intake valves. I want to go solid roller for a couple reasons...1. No break in 2. The slight power gain. With the little knowledge I have, and the reading I've done, I'm thinking a smaller street roller somewhere along the lines of a split pattern, 230-240@ .050, .600 lift maybe a touch more to compensate for zero lash, on a 114. I haven't spec'd anything out, just been looking at lobe profiles mostly on Bullets website. I've never messed with bushing lifter bores in any other build, but this is my first big block Mopar build. This car will be lucky to see 1000 miles/year. Mostly short cruises and maybe a trip to the track once a year, if that.

So what's the deal? Is this something I have to do, and if so why? Also remember, I'm at 6000' above sea level, so I'll be making 80-100hp less than most of you are probably used to....Even with some boost.