journal size? pro - cons

Hi im looking into having a crankshaft made for my donovan hemi.
i hear some guys run big block chev journal size i think its 2.2 and 392/ donovan hemi STD is 2.375 i guess the crank would be a little lighter if i had it made 2.200 right, the bearings would be cheaper and i could probably use a big block chev rod. the larger bearing in theory would probably take more load as there is more surface area right ?
could some guys give me their opinions.

 

The 2.375 is a stronger crank pin/journal but
the 2.2 rod size has slower bearing speed
I guess it depends on crank rpms
i would go with the strength myself

 

I was looking at maybe turning it to 7600 or so i have a 4.250 bore 3.9 stroke, im really looking at trying to make the most realiable combo i can, id like to get the altered to a consistant 7.60

 

We spin 1500 more RPM with a bigger crank than that on 2.375 journals and have no bearing speed issues.

With such a little stroke you have plenty rod to main journal overlap already but more can't hurt so go big journal.

I'm guessing your rod length and/or wrist pin dia won't be stock chevy anyway? so being bigger journal won't cost more

 

One of the reasons why i was thinking of reducing the weight was i have heard the early donovan blocks were not that great, but that is what i have, because the head studs are so long and the main caps studs are so long they come close to coming together???? and i thought more rotating weight down there would increase the chance of seperating everything, i have seen picture of one that done this when a rod broke, the donovan blocks sem to be brittle and dont like parts exiting they seem to fracture everywhere. a JP1 or KB or something probably would have been better but im doing a nostalgia deal, so it should look period correct.