There are two 302's.
I hope I have this right??
The '67 is a small journal block and the '68/'69 are both medium journal blocks.
'67 had 283/327 type domed 11 to 1 CR. forged pistons that I think(??) are press pinned.
'68/'69 had 350 domed type 11 to 1 CR. forged floating pinned.
All used the great old-fashioned 30-30 solid cam that was first used in the 365 and 375 hp/327 motors!
All had big valve double-hump heads and stock the great 300-36 Holley-like dual plane intake with, (I think?), a 780 vacuum secondary Holley 3310- type carb. (But it's own Holley PN!)..
All had standard cast-iron log exhaust manifolds.
Any 4.00" bore block will do nicely and if you can find one that has this, "010" and "010" or maybe "020" and "010" under the timing cover grab it b/c that means the block is cast out of higher alloy metal.. So is harder than normal non-alloyed blocks.
This will at least get you started.. Oh, and btw, I love these little motors!!
PS., and even the later, rounded bottomed 283 blocks can be bored to 4.030" so don't overlook them IF you want a small journal 302 motor??