Un-stroked vs Stroked Displacement vs. Crank Angle, etc.

Going the other way is the 4 1/8 bore 400 chevy with the 3 3/4 stroke and 5.565 stock short rod or a 4 inch bore "383" chevy
In my experience the 5.7 rod worked better and a 6" rod better yet (both for rod angle and piston weight)
NM I did my grandfathers 400M with Cleveland heads- not the super big ones but the smaller ports with one size bigger valve- stock HP manifolds off something else
full size 4 door with cast iron ATX trans (the ONLY place to use Type F except in some Ford power steering) Used a similar short Crower .875 Cam rocker ratio makes a big difference with short cams- I think it was a late 60's or early 70's basically a stock rebuild as far as he could tell but really woke it up
Engine masters later showed that motor can really be made to work- Oh I put a TQ on it did not want to learn Autolite
dibbons- that rod should really cause re-evaluation of cam timing compared to say a 4" stroke and 6.125 rod or a BBM MOPAR combo