Hemi's never came with AC,
albeit that OE hole {for the Alternator/lifting on the ***. line ?}
is a handy mounting spot for aftermarket AC kits no doubt...
I never done it...
For a wedge block to hemi conversion they are the only game in town
pricey too, I was actually thinking of doing a Low-deck 383/400 base stroker
Stage V Hemi head deal in a RR, it's like $8k {2005} after I priced most of out,
for what I wanted to do, all before custom exhaust too,
albeit it'd have looked cool as hell in the 68 RR, it'd made good power,
I'm pretty sure also...
I went with a set of ported Edelbrocks RPM wedge heads instead
{should have done the Victors/Max Wedge, If I knew it was going to be all out}
but it still made near 720hp NA,
ran 9.77 @ 135 & 8.56 @ 158 on N20 300hp progressive shot
I'm not sure if it'd been much more with the Hemi heads @ 10:1
albeit Stage V have far more port flow, mostly all up in higher RPM's too...
Not as good for the street, but ways around that too...
I may still do it in the future, mainly because it so much narrower/shorter,
than a tall-deck RB block, if I run into a bunch of extra cash...LOL
Spend the money on lower end beefing...
There's a short deck hemi block available now too, kind of defeats the
cost savings part thou, not that it is much savings,
albeit, have much more room in the engine bay...
good info-Ski, "no such thing as a cheap Hemi anything"
IMO the block is the real $$$ savings on "a conversion",
albeit still need to be beefed up oiling system, pan capacity & better pump,
add a girdle & steel or billet caps, studs/hardware, for needed extra strength,
especially if your going to push it, custom pistons r' pricey,
depends on the build/rod length comp. height etc.,
rockers r' pricey no matter who's, exhaust r' really pricey too,
especially if you use the Cast Iron OE style, add another $1.2k for aftermarket,
far more if you get old rusted out real Ma Mopar factory ones "prices of gold"...
I'd do headers, probably myself instead...