tA bare 215 block could easily be picked up with one hand.
As you're no doubt aware this engine was a staple for British Leyland in their Rover P5/6 and SD1 cars,Range Rover have used this in several displacements and derivatives for decades too.
As you say they're nice and light in fact they're lighter than F*rds 120c.u. 'Pinto' motor so well suited to many of our smaller European rods.
They've been 'rodder fodder' here too for many years,V8 sound and torque but with slightly better table manners than big inch American V8s,a big consideration here because of the price of gas.