that's not how architecture of a slant is set up. the timing chain cover only covers the timing chain and like small/bigs is integral to the front lip of the oil pan. the water pump bolts direct to the block and the main feed of the water passage is inclusive to the design. so, there should be...
some do, some don't
the harmonic is press fit so a lot of applications don't have one. i know trucks and industrial came with them, i don't believe passenger cars did.
yeah, they'll bolt right up. *sometimes* you'll need to relieve the block or head a little bit for fit/clearance, nothing major.
those are aftermarket heads, they don't have smog ports.
stock they're under the exhaust port:
they're fairly close like for like, however there are some granular details.
the cam may or may not have a snout that allows for the mechanical fuel pump eccentric. not a big deal if you're running an electric pump already, and there's bolt on widget sold that will allow for a eccentric on the...
i'm more in on it because my manifolds are cracked. and all the manifolds i've found are also cracked.
i've got a 383 2bbl, i don't think that i'll pick up *that* much, but at least it won't sound like the top end is coming apart and maybe i get some power as a bonus.
it'll hold up to a pretty decent amount of abuse.
usually the shift forks are the weak part-- highly suggest upgrading to the 71+ steel forks if it doesn't have them already. this goes hand in hand with the side cover-- the later 70+ double interlock lever *should* already have steel forks...