Last weekend I put a pair of H4 headlight conversions into my 73 240. It snowed most of the weekend and tonight was the first time I could take it out for a drive. Wow, what an improvement! I got them at JC Whitney (I had to stop snickering before I could get myself to actually place the order) and put new low and high beam relays and wiring in as well. I measured an extra 1.5 volts at the headlight contacts after rewiring which I'm sure also helps. I went with 100/55 bulbs, which are really sweet on low beam, and fantastic on high. They have a very flat and sharp cutoff on the top of the beam, a lot like modern HIDs.

I live where there are very few street lights and lots of wildlife that likes to come out at night. I highly recommend this for anyone serious about driving at night outside of a major metropolitan area.

hey i have been looking at these was jc whitney reasonable? been seeing 65 -75 on msa and other sites lowest was 49.99 but was from a no name dealer so I was hesitant , thanks Jeff

did you get these?http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10101&storeId=10101&langId=-1&productId=194769&mediaCode=ZX&appId=385277

Thanks Jeff

Jeff, that's the exact part I ordered. The ordering process from JC Whitney isn't up to the standards of the better websites, but they were delivered as-ordered and I had no issues with them at all.

I tried running them for a few minutes before I redid the wiring and didn't feel anything hot on the fuse tray, so I suppose it might be possible to avoid that if you have a clean wiring system. But as I said up top, I measured an extra 1 1/2 volts afterwards, and given that the power goes up by the square of the voltage, that worked out to be about 35% more power at the bulb, just due to the wiring!

Good luck!