I don't know what cam you'll be using for the engine, but there's a difference in lifter bore height somewhere around that year if I remember correctly. Mine's a 69 block and the bore height was lower than later models. I tried using standard Ford hydraulic roller lifters with it and discovered that they wouldn't work....they were pushed almost all the way out of the bores when the cam was on the high end of the lobes. I ended up having to use Crane lifters with the link bars instead with a custom ground cam with a smaller base circle.
I only say this in that it could be more expensive for your build depending on what parts you go with as compared to a different block....Used cores are cheap and a later year might offer you more options with stock, more affordable parts.
Good luck....have fun...that's what it's all about!
Bill
