The 392 “Early Hemi” was only made in 1957-1958. The second generation “hemi” engine was introduced in 1964 as a racing engine but the first production cars did get them in 1966. So the “early hemi” engine is not a very period correct engine upgrade for a 1967 car.
It’s a cool engine but I would rather see it in the nice Chryslers and Imperials that it was originally powering.