mustangGT86_05

Assuming that my lights are still sealed beams, I am planning to convert over to housings that accept individual bulbs. I am planning to go with autopal housings as I've used them before and they do a great job, but I'm just needing to know what style of bulb works with my car being that its of course quad headlights. I keep finding housings with H4 bulbs and I'm doubting they will work right. Any tips? Thanks