1966 Chevy Impala 327 4bbl Carter AVS Carburetor 4027s 4028s REMANUFACTURED For Sale - New and Used

This 1966 Chevy Impala 327 4bbl Carter AVS Carburetor 4027s 4028s is a remanufactured carburetor for original-style restoration and repair.

SEC Restoration Notes

This hard to find one year only 1966 Chevrolet 327/275HP 4bbl Carter AVS Carburetor 4027s has been completely re-manufactured. This Carter AVS was a remote choke AFB design carburetor. The primary reason for the AVS design was to increase the airflow through the carburetor without increasing the bore size. This carburetor is Chevrolet's part number 3875966. We don't rebuild our carburetors, we re-manufacture them so you can rest assured these carbs will last a long time.

Fits / Application

Fits many 1966 Chevy applications using the correct Carter 4-barrel carburetor. Please verify fitment against your original carburetor number, linkage, choke type, base plate, and application before ordering.

• 1966 — Impala, Bel Air, Biscayne, Caprice — 2/4-door — Hardtop — 5.4L V8 327
• 1966 — Impala, Bel Air, Biscayne, Caprice — 2/4-door — Sedan — 5.4L V8 327
• 1966 — Impala, Bel Air, Biscayne, Caprice — 2/4-door — Wagon — 5.4L V8 327
• 1966 — Impala, Bel Air, Biscayne, Caprice — 2-door — Convertible — 5.4L V8 327

Carburetor IdentificationProduct TypeCarter carburetorManufacturer / Carburetor TypeCarter 4BBL Carter AFBPrimary GM / MFG Number3876749 [Carter]4027sAdditional GM / MFG Numbers4028sApplication DetailsYears1966ModelPassenger, Chevy II, ChevelleEngine / Application327 275HP Standard Transmission Air Horn Casting: 6-1854 Main Body Casting: 0-1778Fuel Induction4-barrel carburetorImportant Fitment Notes

• Compare your original unit before ordering; carburetor numbers, base plates, linkage, choke setup, and calibrations can vary by application.

Core / Rebuild OptionsWarranty1-YearCore Credit AcceptedYes [Client is responsible for all shipping costs unless prior arrangements have been made]FAST OptionCore charge is collected upfront and the remanufactured part ships immediately. Once a rebuildable core is returned, the core charge is refunded when applicable.SLOW OptionSEC waits to receive your rebuildable core before shipping the remanufactured part. Please contact us before placing the order.Core ShippingCustomer is responsible for core return shipping unless prior arrangements have been made.Before You Order

• Confirm the carburetor number on your original unit.
• Confirm base plate size, bolt spacing, linkage, and choke type.
• Confirm engine, transmission-related connections, and fuel-induction setup.
• If you are unsure, contact us with photos and numbers from your original carburetor.
• $50 fee applies to all dismantled carburetor cores received.
• If the carburetor is non-rebuildable, the customer is responsible for all shipping charges, including shipping the core back to the customer.

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