Quad Jet for 1977 L82
What is the correct model # or s/n for my '77 L82 4 speed? I am sure it will need to be rebuilt by LARS but need to be sure it is the right carb. I bought this car about 10 months ago but getting it warmed up is a pain. Once it gets to 180 F it runs good. A previous owner installed a street cam so it has a lopy idle. Currently running too rich (gasy smell) Non EGR manual choke. It also has an Eldelbrock performer manifold. Rear gear is 370 based upon 3500 rpm's at 70 mph. Loves to drink gas.Thanks!!!
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1 Attachment(s)
Attached is a identification chart the LARS put together. Good reference if your looking for a date correct carb for you car. Your car would fall in the right column.
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Thanks for the info.........what part of the carb are these numbers loated
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Here are some numbers for you:
1977 L82 Manual Transmission AC & Non AC 17057211 1977 L82 Automatic Transmission 17057210 1977 L48 Manual Transmission 17057203 1977 L48 Automatic Transmission W/AC 17057204 1977 L48 Automatic Transmission 17057202 My findings the only real difference is jetting, the L82 uses K53 primary rods and the L48 used K52 primary rods. Both L82 & L48 uses 77 main jets and CH secondary rods. This is my original 204 carb off my 77. Numbers are just above the secondary shaft on a vertical panel, left side. https://cimg5.ibsrv.net/gimg/www.cor...a040f6d334.jpg |
Looks like I have a knock off carb. S/N# 17055199 date: 2014. Looks like I will be buying a Edelbrock AVS2 since I already have a performer intake.
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17055199 is the 1977 High Performance 800 cfm L82 Vette carb. You won't find a better carb for your car. If you pull it off and install a POS AVS carb to make your car go slower, please send me your L82 Q-Jet and we'll use it on a racecar...
Lars |
LARS,
1. I would like to keep the carb if it makes sense. 2. Does the 800 CFM flow too much for a street cam? 3. If you can rebuild this carb and make it run correctly for the L82 then I will send it to you. 4. Please note I don't have any specs. on the cam since I didn't install it. 5. The motor doesn't clear out until it hits 1500 rpms. 6. This car is running original cast Iron exhaust headers with 2.5" pipes into some noname mufflers. 7. Does it make sense to go with an electric choke? |
I highly recommend you have Lars set your carb up. Be sure to send in the appropriate size USPS box with sufficient packing material to ensure it isn't damaged in-transit (read Lars' instructions please and be sure to drain the fuel from the carb). Include any/all specs you know on the cam, current timing,spark plugs, rear gears, exhaust configuration, etc.
Lars set my carb up back around 2000 and I had him refresh it in 2018 after 18 years of changes and use. |
Originally Posted by C3FIXER
(Post 1598998780)
LARS,
1. I would like to keep the carb if it makes sense. 2. Does the 800 CFM flow too much for a street cam? 3. If you can rebuild this carb and make it run correctly for the L82 then I will send it to you. 4. Please note I don't have any specs. on the cam since I didn't install it. 5. The motor doesn't clear out until it hits 1500 rpms. 6. This car is running original cast Iron exhaust headers with 2.5" pipes into some noname mufflers. 7. Does it make sense to go with an electric choke? Lars V8FastCars@msn.com |
Thank you........will be back in touch.
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If you want your car to run properly and WELL, you should follow-up with Lars to get the carb rebuilt and also tune the engine per his advice. You will be very pleased with the results.
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Twins
My 77 L-82 smells and has a hot air choke and sounds like yours. The lopy cam is a model tradition but love this roach. Check your carb number when you rebuild it Lars has the references
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