Short answer, no.
Long answer, maybe, but it won't be cheap.
Headlights are all about having light from the bulb focused and/or reflected into a coherent beam that is cast on the road. HIDs and incandescant bulbs generate light in a 360 degree pattern around the filament/arc and the housings/projecters are designed to take that non-directional light source and focus it into a nice spotlight.
LEDs on the other hand are a VERY directional light source. They generate light from a very small surface area, which is why they appear bright to the eye, but generally don't create a whole lot of light, except for the more expensive high-power applications. The analogy here is the classic psi vs cfm issue when it comes to turbos. LEDs are a small turbo cranking out huge psi over a small rpm range. Incandescant/HIDs are a larger turbo making less psi, but delivering a larger total flow and supporting higher power. Actually an even better example is a laser. Those things are bright as hell over the small region they throw light, but when it comes to navigating in the dark, would you rather have the bitchin'est laser or the cheapest flashlight?
Now, take something like brake lights or turn signals, and you have a whole different situation. You're not trying to illuminate the ground, you're trying to create a visible signal for other drivers. LEDs work just fine because although they're not casting a large total amount of light, the little bit of light is being emitted by a very small surface area, and appears pretty intense to your eye. So instead of seeing the entire brake light housing turn red, you tend to see a bright pinpoint of red, unless the LED bulb and/or housing are designed for that use.
tl;dr - It takes a lens designed for the LED's light output pattern to make usable lighting. Unless you have LED headlights from the factory, LEDs in your headlight housings won't make shit for light. That, and the heatsinks required for that kind of total light output would be frickin massive.
For more info, look up light "intensity" versus "irradiance"
