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Join Date: Jul 2003
Location: Pittsburgh, PA
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H4/H5 Lighting Question

I was thinking of purchasing a set of used H5 assemblies for my '86, then upgrading the bulb to an H4. I already have round H4's with relay and the old sugar scoops, so this would be purely cosmetic.

After searching and reading a few H5 to H4 upgrade threads, it seems the only difference is the need to modify the female plug on 87+ cars using an adapter. I should have no issues with the electrical connection.

The only question then is "can an H5 assembly be installed in a pre-87 car?" I vaguely remember reading there where some differences in mounting points, but can't find where I read it. Thanks.

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Greg

86 Coupe (stock - pretty much like Butzi designed it)
65 Ducati Monza 250 & 66 Monza Junior (project)
"if you are lucky enough to own a Porsche, you are lucky enough"
Old 12-25-2010, 03:13 AM
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Been there done that and all I can say is don't. H5 lights will fit but they cannot compare on any level to H4 Euro's. H4 Euro's are about 320.00 on e bay. H5 lights are plastic and the light pattern is inefficient and scattered. Spend the extra $ you will not be happy with H5 lights.
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1974 sahara beige 911 targa
1982 chiffon 911sc
1985 prussian blue metallic carrera
Old 12-25-2010, 05:28 AM
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+1

I'd leave the round H4s before I would install H5s. The light on those is kinda sucky...
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1987 ROW coupe, Marine blue, with a couple extra goodies.

The cars we love the best are the ones with human traits, warts and all.
Old 12-25-2010, 06:33 AM
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For a little more than the price of a pair of H-4's you can have a set of these you just custom make them to the way you like them.

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" Porsche there is no substitute" I always liked that saying. Air cooled is the only way to go!
76 911 C.R.A.P. Gruppe #2 BIG time TURBO C.R.A.P. Bitz EFI/EDIS Now MegaSquirt 3
76 Blazer also restored by me
Old 12-25-2010, 06:53 AM
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They do look cool!
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1974 sahara beige 911 targa
1982 chiffon 911sc
1985 prussian blue metallic carrera
Old 12-25-2010, 07:04 AM
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The light they put out is the coolest thing about them function before form is always great on these cars!
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" Porsche there is no substitute" I always liked that saying. Air cooled is the only way to go!
76 911 C.R.A.P. Gruppe #2 BIG time TURBO C.R.A.P. Bitz EFI/EDIS Now MegaSquirt 3
76 Blazer also restored by me
Old 12-25-2010, 07:06 AM
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The upper (round) projector looks good but I think the lower oval one, functional or not, is hideous.. sorry.
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Old 12-25-2010, 08:17 AM
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Quote:
Originally Posted by GaryR View Post
The upper (round) projector looks good but I think the lower oval one, functional or not, is hideous.. sorry.
thats your opinion everyone is entitled to one it does look better on the car.
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" Porsche there is no substitute" I always liked that saying. Air cooled is the only way to go!
76 911 C.R.A.P. Gruppe #2 BIG time TURBO C.R.A.P. Bitz EFI/EDIS Now MegaSquirt 3
76 Blazer also restored by me

Last edited by gsmith660; 12-25-2010 at 08:36 AM..
Old 12-25-2010, 08:27 AM
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Thanks, I appreciate the feedback on the H5's, I definitely won't go that direction. I subscribed to the projector thread. I love the look on a hot rod, but my car is pretty much stock, so I may stick with the euro H4's.

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Greg

86 Coupe (stock - pretty much like Butzi designed it)
65 Ducati Monza 250 & 66 Monza Junior (project)
"if you are lucky enough to own a Porsche, you are lucky enough"
Old 12-26-2010, 04:29 AM
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