I am going to change out my plugs and wires and went to NAPA to get the Bleden premium wires and TR55s.

A couple posts here say to use 8mm wires. Is that correct?

The only Beldens the NAPA guys shows in his computer are 7mm. Does anyone have the part number for the Belden 8mm wires?

If you tell them it'* for a 92-4(I think) Bonneville you'll get the 8mm. I think the wire lengths are almost the same. Other than that, the 7mm work just fine, can't think of any benefits with going to a 1mm larger wire.

Nothing that you're ever gonna remotely notice......If I remember right you actually order for a 97-02 Grand Prix though, I could be wrong, or thinking of something else.

i can tell u that the wires defintally look good, really contrast my red msds LOL

Smellbird is correct. You will want to ask for a 1992-1995 Series I Supercharged 3800 wires.

They're bigger, and they're cheaper too.

I run 7mm beldins on my car. You won't have any problem with them.

Just put on 8mm Beldin'* today.

Thanks guys.

I will just put the 7mm wires on. I did not think 1mm would make a difference.

I believe the core wire is actually the same, just some added insulation.

That is the case.

Funny, I have the 8mm Beldens on my 93, and the 7mm on the 95, so maybe it does make a difference, cuz the 93 is quicker and faster.