Daniel are you sure V6 is zero balanced? as far as i know v6 engines are not naturaly balanced ... and have seen v6 front puleys-> not zero balanced-> sign of external balanced crankshaft external balanced cranks have ofset weighted front puly and flywheel
Yep, that's what I'm saying - the V6 flywheel is part of the crank balance. It has a section cut away for about 2/3 diameter on both front pulley and flywheel. Engine don't run so good without it.