EASYBERG Spark Plug Wire Separators Aluminum Kit, 7mm 8mm 9.5mm Engine Spark Plug Wire Separator Divider for Looms SBC 350(Black)

They are a bit big for even my 9mm Ford racing wires. I can tighten them up and pull the wire through it with no resistance at all. I'll give them a touch of rtv in the grooves, they'll work fine. I like that they're metal and they come with 2,3, and 4 wire clamps unlike all the other Amazon ones I've seen.

Loved the color choices so can match the existing plug wire colors. Just loosen the hex head screw most of the way, put under the wires, turn the top so the top sits over the top of the wire, and thighten the hex screw.Small down side. The opening for the wires is a tad larger than the size of wires. So in my case-the slide up and down

Great price, look amazing, Great quality, size is perfect and cleans the bay up

They look great and seem to be made well, but they are a little loose on 9mm wires. The description indicates that they will fit 7mm to 9.5mm wires. Although they will, in fact, fit any of those sizes, anything less than 9.5mm will be a loose fit and the separator will slide down the wires. I remedied that by cutting small pieces of electrical tape to match the wire indentations. For that trouble I removed one star for "Easy to install".

I used these separators as fuel line separators on some of the mini-bike builds. Good quality for the price.YouTube BLACK66