nope. common misconception, though. 6/8 is a triple meter, with a basis on a group of three eighth notes, where 3/4 is a duple meter, with a basis on a group of two eighth notes.
6/4 is a duple meter, implying a measure of 4/4 and a measure of 2/4, alternating consistently. it isn't always, but often that's what it means. when it's representing two measures of 3/4, it's usually used to imply a triple feel - meaning, each downbeat of each measure of 3/4 feels like one macrobeat in 6/8.
i can't listen to soliphar's track at work, though, so i can't weigh in.