Sloths 7k sits straighter than the 4k.
We ran a 3k inlet manifold and 4k
carb and they fitted perfecly.
The sump of a 3 or 4k will fit you just
need to modify the oil pick up.
Things like gearbox,manifolds and engine mounts
were a staight bolt up.
All Kmotors are basically the same block!
Are you going to run e.f.i or carbies