1967 and back 327s had a canister oil filter and a breather tube behind the intake manifold. In 1968 they went to a spin-on filter. '67-back 327s also had different cranks with different size bearings, so there is a small-journal and a large-journal 327, the '68 and '69 being the large-journal. Pre-68 327 cranks were forged, '68 and up were cast. In 1969 and some late '68s the heads were cast differently and the '69 heads had accessory bolt holes for the longer water pump. Hope this helps.
hotrod68--at this point, everything helps!
I remember complaining about the old canister oil filter on the original engine. Now I wish I had that old engine and canister to complain about!
Seems I'm "stuck" with the 68 look due to the PVC system, but I'm ok with that. I've made some other modest trade-offs/upgrades with this painfully slow home grown restoration, mostly for safety and drive-ability.
Somewhere in this forum I've seen discussion about engine mounts and motor mount bracket differences for different small engine/horsepower combinations on the 1st gen. Since my 327 motor will have much more output than the original 327, what recommendations on engine mounts/brackets would you make?