Join Date: Jan 2005
Location: San Juan Capistrano
I'd be afraid LEDs are way too hot for old plastic.
Not that I'm trying to sell you on LED's, but... the fact is that LED's consume far less power than incandescent bulbs and as such, run much cooler. So if your primary goals were to put less strain on that antique generator and to ensure that rare lenses don't get melted, LED's would be a great solution. But if originality is your primary concern, then no, they won't look right.
Another consideration is electrical; the Marelli DN22 single field generator, also fit to the early Alfa 1900, puts out a whopping 200 watts.
Holy smoke! That's only 16.7 amps @ 12V. I guess you only use the air conditioning when it's really hot.
San Juan Capistrano, CA
'63 Guilia spider
'65 Guilia Sprint GT