Help Finding a Front Spoiler Extension
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Do you feel that you NEED the extension on what you now have, or do you not have one, presently? IMO, anything which hangs down below where the stock air dam is positioned is likely going to be broken off, before long. Lots of folks have trouble keeping the stock air dam undamaged. Is your desire for this spoiler 'functional' or just 'cosmetic'?
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
Do you feel that you NEED the extension on what you now have, or do you not have one, presently? IMO, anything which hangs down below where the stock air dam is positioned is likely going to be broken off, before long. Lots of folks have trouble keeping the stock air dam undamaged. Is your desire for this spoiler 'functional' or just 'cosmetic'?
I have an aluminum radiator and the temperature never goes above of the thermostat specified temperature.
I do like the looks of the air dam, though.
Is my vette stock?? HAHA
Joined: Oct 2015
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From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
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Those bigger air dams are a must for higher horsepower motors. Its mostly the drivers fault if they are broken either from parking or not enough angle of attack on a speed bump. Rock chips are par for the course from using the vehicle
And it being thick rubber it wont crack
And it being thick rubber it wont crack
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
I don't think the larger air dam is the issue, if the engine runs hot. Most likely, the radiator needs a clean-out or replacement with a larger aluminum unit. The amount of airflow provided by the stock air dam is plenty adequate, if the cooling system is "up to snuff".
Thread Starter
Race Director
Joined: Mar 2016
Posts: 14,331
Likes: 8,139
From: Napa Valley California
For 73 they were actually a factory addition to the oem spoiler on ac optioned big block cars.
The factory added them to help scoop up more air from under the car at slow speed and also to create more negative air up behind the radiator at highway speeds so more air is pulled through the radiator.
I believe they were factory additions on 73-79 ac cars, then the 80-82’s had the new designed front end and the extension was no longer necessary.
The factory added them to help scoop up more air from under the car at slow speed and also to create more negative air up behind the radiator at highway speeds so more air is pulled through the radiator.
I believe they were factory additions on 73-79 ac cars, then the 80-82’s had the new designed front end and the extension was no longer necessary.
Last edited by OldCarBum; Jun 7, 2025 at 12:19 PM.
Le Mans Master
Joined: Jun 2019
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From: Indiana
https://www.corvetteforum.com/forums...on-advice.html
Last edited by interpon; Jun 8, 2025 at 07:59 AM.
Thread Starter
Race Director
Joined: Mar 2016
Posts: 14,331
Likes: 8,139
From: Napa Valley California
I happened to be home today and had enough time to pull down the box containing the spoiler extension from the garage shelf.
I took a quick caliper measurement of approximately .19” which is about as close as you can get to 3/16” or .1875” rubber.
I took a quick caliper measurement of approximately .19” which is about as close as you can get to 3/16” or .1875” rubber.
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
Awesome! Thank you for all the effort and help!
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