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LM Headlight cups
Posted by: Lane66m ()
Date: April 15, 2018 04:11PM

What's with headlight cups that have a square hole in the bottom? I thought they all had a round hole.


Also, Is there a difference between inboard and outboard cups?

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: LM Headlight cups
Date: April 15, 2018 04:43PM

Can't help you with the stamping difference, but Yes - they are different for low beam and high beam positions.


Dan Davis ~ Pierce County, WA ~ CORSA Western Director + Corvairs NW + North Cascades Corvairs + Corvanatics
1966 Corsa Turbo coupe ~ ~ 1966 140 Corsa ~ ~ 1965 Monza 140/4 'Vert Sierra Tan/Fawn ~ 1964 Monza 'Vert (SOLD) ~ 1960 Monza Ermine White/Red PG ++ ~ 1965 Monza 140/4 Evening Orchid w/ ivory/black interior ~ 1962 Monza Wagon 102/4 ~ 1963 Rampside/Scamper ~ 1963 Red/Greenbrier ~ 1969 Ultra Van #468

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Re: LM Headlight cups
Posted by: Lane66m ()
Date: April 15, 2018 05:25PM

Guess I need to pull the bezels off my Coupe and find out the differences. I want to save a set from the bunch I have and move the rest out of my possession.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: LM Headlight cups
Posted by: MattNall ()
Date: April 15, 2018 05:34PM

Never seen the square holes..





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: LM Headlight cups
Date: April 15, 2018 06:13PM

Difference is the mounting tab/slot for the adjuster screws.
I 'think' there are also different indentation positions for the headlight nubs to fit into so that a 'fool' could install two low beams or similar hijinks.

So four different ones, I'd guess...


Dan Davis ~ Pierce County, WA ~ CORSA Western Director + Corvairs NW + North Cascades Corvairs + Corvanatics
1966 Corsa Turbo coupe ~ ~ 1966 140 Corsa ~ ~ 1965 Monza 140/4 'Vert Sierra Tan/Fawn ~ 1964 Monza 'Vert (SOLD) ~ 1960 Monza Ermine White/Red PG ++ ~ 1965 Monza 140/4 Evening Orchid w/ ivory/black interior ~ 1962 Monza Wagon 102/4 ~ 1963 Rampside/Scamper ~ 1963 Red/Greenbrier ~ 1969 Ultra Van #468

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Re: LM Headlight cups
Posted by: Frank DuVal ()
Date: April 15, 2018 06:36PM

On late models, both low beam buckets (cups) are the same, and both high beam buckets are the same. Earlies and FCs are all four different, right, left, low, high.

So for your late buckets, noneed to open the headlamp assemblies on a car just pick up a low or high beam and set it in the bucket. If it fits, it fits what you are holding, if not, it is the other.....

[www.corvair.com]

You didn't ask,but all LM stainless steel rims are the same. And earlies and FCs are all the same, but not same as lates.

Frank DuVal

Fredericksburg, VA

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Re: LM Headlight cups
Posted by: Lane66m ()
Date: April 16, 2018 03:38AM

Thank you to all. I can figure out the round hole cups I have. I do have a spare outside bulb I can use to verify these.

The square holes ones must belong to another GM model. I picked up some mongrel parts when I acquired RatVair. And the square hole ones appear to be some more of them.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: LM Headlight cups
Posted by: isucorvair ()
Date: April 16, 2018 04:45PM

My 74 Vette had square holes - BUT - also some round holes, since I used Corvair parts to fix it.


Eric P.
DeWitt, IA

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Re: LM Headlight cups
Posted by: sweet66monza ()
Date: April 25, 2018 05:18PM

Today at work I was rewiring a 67 gto and all four were this style

Cody Hurley
North Idaho (Post Falls)
66 Monza convertible 140/PG, loaded with factory options
66 Corsa factory turbo coupe, 3rd owner fully documented [corvaircenter.com]
65 Monza coupe daily driver 110/4
66 Monza 95/PG coupe project FOR SALE
Also 2 Ford f350 IDI diesels, five Jeep FC 170s, 66 CJ5A, 4 Rokon Trailbreakers, 3 vintage Honda 50cc minibikes, 4 Honda xr350s, and thousands of parts





Edited 1 time(s). Last edit at 04/25/2018 05:18PM by sweet66monza.

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Re: LM Headlight cups
Posted by: corvairsince70 ()
Date: August 16, 2018 12:57PM

Just changed the headlights in my '68 Monza conv and it has the square holes in all cups. Also, the stainless trim is not held by the spring, only the cup.

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Re: LM Headlight cups
Posted by: Lane66m ()
Date: August 16, 2018 03:42PM

Does the stainless trim have 3 tabs?

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: LM Headlight cups
Posted by: cnicol ()
Date: August 16, 2018 04:18PM

Frank wrote: "On late models, both low beam buckets (cups) are the same, and both high beam buckets are the same. Earlies and FCs are all four different, right, left, low, high."

Craig opines: I think all four are different on lates too. The parts book shows four different part numbers and calls out markings of R1,R2.L1,L2 Right High beam, Right low beam, etc.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later
2+2 gnatsuM 5691

+17 Tons of parts

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Re: LM Headlight cups
Posted by: corvairsince70 ()
Date: August 16, 2018 04:28PM

Yes, 3 tabs

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Re: LM Headlight cups
Posted by: DCMain ()
Date: August 16, 2018 04:57PM

I have a 68 and it is has two tabs...not three. And I have and NOS setup for a 65 and another for a 66-69 and they are all 2 tabs...round holes

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