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Monkey Wrench
Join Date: Feb 2005
Location: CA
Posts: 919
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What year did H4 headlights become standard?
Does anyone know what year H4 headlights became standard on 911s?
Too many people on this board have upgraded/changed their headlights to H4s to tell but I think it happened sometime in the 1980s, right? |
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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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Certainly "never" for USA cars..... The separately - aimable H1's were first...I think as far back as 60's or 70's...
I think Euro cars as early as the 70's had H4's.... - Wil
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Wil Ferch 85 Carrera ( gone, but not forgotten ) |
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Monkey Wrench
Join Date: Feb 2005
Location: CA
Posts: 919
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Thanks Wil!
I guess that's why they sometimes call them euro H4s. ![]() |
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Registered
Join Date: Feb 2003
Location: Bay Area, CA.
Posts: 2,048
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I think they became standard in the US on 1984 911 and up
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Moderator
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Quote:
Somewhere in the Carrera run they started using H5 which sorta looks like an H4
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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Registered
Join Date: Feb 2003
Location: Bay Area, CA.
Posts: 2,048
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That was what I was trying to say, just not sure if it H4 or H5, but yeah they look the same
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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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I believe the totally inadequate H5's came around 87. My 85 and some 86's I've seen have the "sugar-scoop" trim rings with the flattish, semi-domed US style sealed-beam headlights...
The H5's on the USA 87's were optically inferior to the H4's...the H5's also had the US-mandated aiming "teets" that allowed you to attach the aiming mechanism that service garages used. H4's never had that. Wil
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Wil Ferch 85 Carrera ( gone, but not forgotten ) |
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Registered
Join Date: Feb 2005
Location: Mexico
Posts: 1,961
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I think H4s were and are illegal on the US roads. H5s were DOT approved.
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Registered
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Quote:
Don
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72T Coupe - SOLD :-( |
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