The 283 is just a 195HP 2-bbl (got the int manifold also, and a few other parts), it's the original engine that came on the car, but down here original numbers and the such are meaningless, my guess is i can get maybe 200 us dollars, 250 at the very most, since it was stored indoors and is in perfect condition.
As for overbore i think i can go .030 (haven't measured yet) but since all parts must come from up there (and are really costly) going .060 was a safe bet...
Anyways, posts so far lean to the 427 option, not sure about rect. port (LS-6 type) heads, won't they kill low end torque?, i've been told oval port heads are far superior...i'm open for suggestions since i have peanut por heads (useless), and BB's engines are nowhere to be seen here (even SB's for thast matter!!) so most parts have to buy new.
Thanks