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1977 grand prix headlights
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sy82nj
New User
| Posts: 4
| Joined: 06/09
Posted: 07/25/09
12:34 PM
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does anybody know the size of the headlight? i want to convert to unsealed so i can upgrade to hid bulbs
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waynep712
Enthusiast
| Posts: 436
| Joined: 10/07
Posted: 07/25/09
09:27 PM
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try this link
http://www.hidxenonlights.com/wiring-upgrades-c-667/h4656-sealed-beam-adapters-p-508
this is the wiring harness for your application.. and your low beam bulb....
the low beam bulbs are H4656
the high beam bulbs are H4651 ...
there are several other numbers for variations in bulbs... but i think you can find the info there...
you also might think about increasing the power to the bulbs with load dropping relays...
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sy82nj
New User
| Posts: 4
| Joined: 06/09
Posted: 07/26/09
07:16 PM
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thanks are the lights 4 x 6 or bigger
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waynep712
Enthusiast
| Posts: 436
| Joined: 10/07
Posted: 07/26/09
07:31 PM
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the connectors would be the same...
surf the site..
and if you have single large rectangular headlights...
those are usually part number 6024... or H6054 something like that...
i actually saw my delco head lamp book just the other day.. i am just not sure if i moved it to another box or to the round file..
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