most everything on the SBC and SBB are backwards too each other.
so you'd probably be best off just stealing everything out of a small block Chevelle. you know, fan shrouds, wiring harnesses, engine mounts, etc.
people have put a Buick 350 crank into a 300 block ( 340ci on the stock bore ), but that can get a little pricey.
www.TAPerformance.com also has aluminum heads for the 300 / Rover which flow pretty well.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Government schooling is about "the perfect organization of the hive."
H.H. Goddard, Human Efficiency (1920)