Originally Posted by Fotoman
My post was not too clear I think. I have only one engine, I'm talking about the positive and negative. They are size 00 and run for about 8 feet.
It was clear to me. I think as long as you don't bundle them with wire ties and pull the ties as tight as you can get them, you'll be fine. I have seen insulation damaged by wire ties that were pulled too tight. This could lead to a short circuit at some point in the future.
Since engine starting cables have no circuit protection other than the internal resistance of the batteries, this could start a fire.
Pull the ties finger tight, no more. Or use insulated clamps to hold the cables.