Does anyone have the part numbers for the Hella headlights and do I need painless wiring harness for a 71 Charger. I have read that some of you have gotten them through Summit. THANKS dave

i think you can use the stock bulb# in the search and it will help.

I rewired my headlamps on my challenger so that when the high beams are on all 6 elements are on. Not used it long enough to see if it causes overheating of the bulb plugs though. I used a relay box from a Tercel and 1 diode. Seems to work for me.
Curt

This has been convered a few times, but the general idea is to use Hella H4 conversion headlamps (I prefer to get them from www.rallylights.com ) with relays to power them, instead of simply straight replacing your sealed beam headlamps.

I've found that they work fine IF your stock wiring and headlight switch is in good condition, but honestly, it's a good idea to install relay and maximize the light output of the bulbs. The 55/60W bulbs always put out more than enough light on the vintage two-headlight vehicles I used them on.

Bought and installed this Hella kit in my '69 Super Bee. Everything just plugs into stock harnesses, and I haven't run relays for it yet, but its working fine so far.

Cant argue with the price these guys have and they ship super quick:

http://classicgarage.com/53hehekit.html

68 Charger H1 and H4 headlight upgrade

The wattage is the same as stock but is more efficient and better shaped light pattern.
Problem is the same as when using sealed beams. As has been noted - the stock wire size, length and connectors was just barely adequate in the A-bodies, slightly better in the bigger cars.
Only difference is with the H4s, if the voltage to the lights drop below a certain point, the light output will start to noticibly drop. Even then, they provide better lighting than a sealed beam.