1. USED Car/Truck Carburetors Items
  2. sku: 3625853894268681
  3. HOLLEY 3659S

HOLLEY 3659S Power Carburetors 4055-842 3659-841

fits model: 427, Corvette. year: 1968.

3659-841 Holley 3659s 1968 427 4 Spd Corvette Tri Power 4055-842 Carburetors Ncrs

( Brand: Holley ), ( Manufacturer Part Number: 3659S ), ( Items Included: Gasket ), ( Country Of Manufacture: United States ), ( Material: Diecast ), ( Vintage Part: Yes ), ( Choke Type: Divorced ), ( Mounting Flange Type: 2bbl ), ( Manufacturer Warranty: 1 Year ), ( Oe/oem Part Number: Chevy Chevrolet 427 Tripower 3x2 Carbs Carburetors Carburetor, Pr ), ( Features: Triple ), ( Surface Finish: Dichromate ), ( Universal Fitment: No )

Review HOLLEY Spd Tri Power Carburetors Ncrs fits CORVETTE 427 1968

The Holley 3659 Series carburetors are a high-performance upgrade for 1968 Chevrolet Corvette engines equipped with the 427 cubic inch (7.0L) powerplant. Designed to replace the original 4-barrel carburetor setup, these Holley carburetors deliver improved power, throttle response, and driveability.

The Holley 4055-842 3659-841 carbs are a direct replacement for the stock Chevrolet 4-barrel setup, providing a more efficient fuel delivery system for increased horsepower and torque. These carbs are designed with Holley's proven design, featuring a 4150-style air horn, which allows for easy tuning and compatibility with a wide range of aftermarket intake manifolds.

The Holley 3659 carbs feature a distinctive domed-top design with a total capacity of 80 CFM (cubic feet per minute) at 700 RPM. Each carburetor has a 4150-style float bowl with a capacity of 1.7 liters (4.5 US gallons), ensuring ample fuel delivery for high-performance engines. The bowl is equipped with Holley's Hi-Performance bowl gaskets, providing a secure seal to prevent leaks and ensure consistent performance.

The carburetors come equipped with Holley's durable six-bolt, heavy-duty, chrome-moly base. This base is not only aesthetically pleasing but also offers increased strength to withstand the demands of high-performance applications. Additionally, the chrome-plated throttle shafts, linkage components, and base add an eye-catching touch to your engine bay.

The Holley 3659 carbs offer easy tuning through adjustable secondary metering rods, allowing fine-tuning of the secondary fuel mixture for your specific engine setup. A hand-turn, screw-in primary center jet kit is also available (sold separately) for even more precise tuning and optimal performance.

Each carburetor comes complete with all necessary hardware for installation, including bolts, gaskets, and O-rings. Additionally, the carbs are designed to be used with Holley's CNC-machined intake manifolds (sold separately), ensuring a perfect fit for your application.

The Holley 3659 carbs are ideal for enthusiasts seeking to upgrade the fuel delivery system on their 1968 Corvette 427 engines and are looking for improved power, throttle response, and dramatical engine upgrades. Keep in mind that the installation process may require some modifications to the existing engine wiring and fuel system, so be sure to consult the install instructions and a professional mechanic for advice on these matters.

The Holley 3659 Series 1968 427 Corvette 4-barrel carburetors (part numbers: 4055-842 for the primary and 3659-841 for the secondary) are popular choices for restoring or upgrading the performance of a 1968 Corvette equipped with a 427 cubic inch engine. Here are some pros and cons that could help you make an informed decision for your project:

Pros:

1. Authentic Looks: The Holley 3659 Series carburetors replicate the original appearance of the 1968 Corvette's 4-barrel carbs, ensuring a correct and authentic visual match for your classic Corvette.

2. Improved Performance: The Holley carbs provide better fuel flow and atomization compared to the original designs, resulting in improved engine performance and throttle response.

3. Modern Features: These carburetors come with several modern features such as electric choke and vacuum secondary, making it easier to start and tune your engine.

4. Reliability: Holley carburetors are known for their durability and reliability, making them a good investment for classic car enthusiasts.

Cons:

1. Cost: These carburetors can be quite expensive compared to the original 1968 Corvette carbs.

2. Complexity: Installing and tuning the Holley carbs might be more complicated than the original carburetors due to their additional features, potentially requiring the help of an experienced mechanic.

3. Calibration: Achieving the optimal fuel mixture for your 427 engine may take some time, and fine-tuning the carburetors could be an ongoing process.

In conclusion, the Holley 3659 Series 1968 427 Corvette carburetors provide authentic looks, improved performance, and modern features but come with a higher cost, increased complexity, and the need for calibration. Ultimately, the decision to invest in these carburetors depends on your priorities as a Corvette enthusiast and the resources available for installation, tuning, and ongoing maintenance.

If you are primarily concerned with achieving the best possible performance and are willing to invest the time and money required for installation and calibration, the Holley 3659 Series carburetors could be a wise investment. However, if you are working on a budget or prefer a more straightforward carburetor installation, the stock 1968 Corvette carburetors might suffice. It's always a good idea to consult a knowledgeable mechanic or carburetor specialist to help you weigh the pros and cons based on your specific circumstances.

Details:

All of the hardware is then re-plated back to its original finish and carburetor assembled factory specifications using all new parts components. These carburetors are guaranteed 100% original and not re-stamps as you can see by the before restored pictures of date pads. There are no painted parts on this restored carburetor. The carb has the correct and original 5062 metering block.

Happy buying. The throttle shaft is line reamed and brass bushings are installed to eliminate that lean idle miss you get when the shafts loose. These rare carburetors have been completely disassembled and boiled out. These carburetors have been wet flow tested and are ready to be bolted on with little or no adjustments made.

These carburetors are then acid etched like an original factory carburetor. These carbs came on the L-68, L-71 and L-89 cars. These carbs will meet or exceed NCRS specs. These carbs were not all dinged up or chipped, they started our process as very nice.

These carbs were original equipment on all 1968 Corvette with the 427/435HP or 427/400HP option 4 speed transmission.

part #: 3659s prices

  • $2175.00-$4295.00

specifications carbcoon:

  • for models: 427, Corvette
  • for years: 1968
  • brand: Holley
  • mpn: 3659s
  • items included: Gasket
  • country of manufacture: United States
  • material: Diecast
  • vintage part: Yes
  • choke type: Divorced
  • mounting flange type: 2bbl
  • manufacturer warranty: 1 Year
  • oe/oem part number: Chevy Chevrolet 427 Tripower 3x2 Carbs Carburetors Carburetor, Pr
  • features: Triple
  • surface finish: Dichromate
  • universal fitment: No

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: Remanufactured

shipping carbcoon:

  • carrier: UPS
  • cost: $0.00
  • service: UPS Ground
  • transit: 5-10 Days
  • type: Fixed
  • class: Standard

returns carbcoon:

  • time: 14 Days
  • policy: Returns Accepted
  • paid by: Buyer

payments carbcoon:

  • wallet: Google-pay
  • other
  • credit card: Discover

offer carbcoon:

  • started: December 28, 2024
  • quantity: 1
  • best offers: True
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0

seller carbcoon:

  • # reviews: 3481
  • rating: 100.0%
  • city: Middlesex, New Jersey
for models: 427, corvette, for years: 1968, items included: gasket, country of manufacture: united states, vintage part: yes, choke type: divorced, mounting flange type: 2bbl, manufacturer warranty: 1 year, oe/oem part number: chevy chevrolet 427 tripower 3x2 carbs carburetors carburetor, pr, features: triple, surface finish: dichromate, universal fitment: no,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, material: diecast, sku: 3625853894268681,

Holley 3659S Is Similar To:

carbcoon logo
5 offers $2175.00–$4295.00 USD
  • Offer #1: $4295.00 price + $0.00 shipping estimate = $4295.00* total. These carbs were not all dinged up or chipped, they started our process as very nice carbs.FREE SHIPPING
  • Offer #2: $2175.00 price + $23.61 shipping estimate = $2198.61* total. There is an alternative Setup with a matching 4055-1, Dated 832 for use with the 4 speed 427/400 or 435. 1968 CORVETTE 427/400 RARE AUTO TRANS 3 X 2 MATCHING DATE CODE (833).+$23.61 shipping
  • Offer #3: $4295.00 price + $0.00 shipping estimate = $4295.00* total.FREE SHIPPING
  • Offer #4: $4295.00 price + $0.00 shipping estimate = $4295.00* total.FREE SHIPPING
  • Offer #5: $4195.00 price + $0.00 shipping estimate = $4195.00* total. These carburetors are then acid etched like an original factory carburetor. The center carburetor 4055 is dated 7B2 and the 3659 end carbs are dated 7B1.FREE SHIPPING

Copyright © carbcoon.com