The cranks fit the same, but the 16V is a double
counterweight where the 8V is a single, I don't
think there is a difference in the weight, but double
weights will flex the crank less under high RPM use
The 16V is not an interference engine, others have
debated this, but I tested it with a 95 16V, pistons up
and rotated the camshaft, no hitting.
Wild