[Gearhead999]

Should be a direct bolt in. The two engines, 68 and 70 have the same imbalance, so that won't be a concern.

As said above, you could get a 428 [FE] engine in a 68. It will fit.

The oil pans are different.

Also, if you look in the catalogs, can't remember which one, they offer headers specific for this swap. Would make life easier I'm sure.

As far as the shaker hood. I'm sure it can be done. Might look a little strange with the turnsignals and the shaker on the same hood. In 68 the fixed scoop wasn't on the hood with turnsignals, at least I've never seen one factory done.