The Stovebolt Site Forums The Shop Area The Electrical Bay Plug Wires

So I have a silly question. How important are plug wires. I understand that they are CRITICAL for operation. But is there a noticeable difference between the $100 set and the $20 set? Not high performance or race application. Just in your everyday driving rig.

It's relative to what system you are using. Electronic and HEI systems require at least an 8mm carbon type wire. Wire core is not recommended for these systems. A good 7mm carbon type wire would work on your year truck with the stock points distributor.
Probably $35 to $50 at most auto parts stores.
Fred

Fred thanks. I have upgraded to HEI but the old plug wires don't fit on the cap. That's why I was wondering. I need to get a new set. Can you recommend some off summit?

I would use AC Delco HEI wires, Summit should have them.

I don't have any preferences as there are a lot of good products out there. There are several variables however, depending what you are using for an exhaust system. The HEI ignition was introduced in 1975, they also used manifolds on small blocks that were located below the spark plugs. So the wires were on top of the engine over the rocker covers. Earlier rams horn manifolds typically had the plug wires under the manifolds which looks much cleaner in most applications.. Subsequently a stock set for a factory HEI wouldn't work well with rams horns. If you have rams horns and can find a set that is longer and specifically made for that set up, that would be my suggestion. If you have headers, you're on your own.
Fred

Fred,

I just installed Headers so I'll figure it out.

Buckshot,

AC Delco sounds great to me!!

Kind of along the same lines- should I be using a different plug if I went to HEI?

No need to change plugs but you will have to open the gap to .045

Thanks Martin!!!