1978 Buick Century Engines

1978 Buick Century Engine Assembly (No parts in stock)
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Engine Assembly (Not Actual Photo)
Summary
Year: 1978change
Make: Buickchange
Model: Centurychange
Item: Engine Assembly
Condition: OEM Used
Items Available: 0
Price Range: N/A
Local Discount: N/A
Returns: Cancellation & Return Policy
Item: Engine Assembly change
Condition: OEM Usedchange
Items Available: 0
Price Range: N/A
Local Discount: N/A
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Select the right Engine/Motor for your 1978 Buick Century

This part may have multiple fitment options depending on your vehicle's engine, drivetrain, and configuration. To ensure proper compatibility, please select the correct fitment below. If you’re unsure, we strongly recommend checking your VIN or vehicle build details before ordering. You can update or change the fitment selection at any time.

Engine/Motor - BUICK 6 Cyl, 231 cid (3.8L) 2-barrel carburetor turbo (VIN G, 5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 6 Cyl, 231 cid (3.8L) 2-barrel carburetor turbo (VIN G, 5th digit)
Items in stock: 0
Engine/Motor - BUICK 6 Cyl, 231 cid (3.8L) 2-barrel carburetor Without turbo (VIN A, 5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 6 Cyl, 231 cid (3.8L) 2-barrel carburetor Without turbo (VIN A, 5th digit)
Items in stock: 0
Engine/Motor - BUICK 6 Cyl, 231 cid (3.8L) 4-barrel carburetor (turbo, VIN 3, 5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 6 Cyl, 231 cid (3.8L) 4-barrel carburetor (turbo, VIN 3, 5th digit)
Items in stock: 0
Engine/Motor - BUICK 8 Cyl, 301 cid (4.9L, VIN Y, 5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 8 Cyl, 301 cid (4.9L, VIN Y, 5th digit)
Items in stock: 0
Engine/Motor - BUICK 8 Cyl, 305 cid (5.0L)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 8 Cyl, 305 cid (5.0L)
Items in stock: 0
Engine/Motor - BUICK 8 Cyl, 350 cid (5.7L) VIN R (5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 8 Cyl, 350 cid (5.7L) VIN R (5th digit)
Items in stock: 0
Engine/Motor - BUICK 8 Cyl, 350 cid (5.7L) VIN X (5th digit, Buick)
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 8 Cyl, 350 cid (5.7L) VIN X (5th digit, Buick)
Items in stock: 0
Engine/Motor - BUICK 8 Cyl, 403 cid
Select Fitment This fitment option is for 1978 Buick Century, select this option for BUICK 8 Cyl, 403 cid
Items in stock: 0
Engine/Motor - CENTURY 6 Cyl, 196 cid
Select Fitment This fitment option is for 1978 Buick Century, select this option for CENTURY 6 Cyl, 196 cid
Items in stock: 0
Engine/Motor - CENTURY 6 Cyl, 231 cid (3.8L, VIN A, 5th digit)
Select Fitment This fitment option is for 1978 Buick Century, select this option for CENTURY 6 Cyl, 231 cid (3.8L, VIN A, 5th digit)
Items in stock: 0
Engine/Motor - CENTURY 8 Cyl, 305 cid (5.0L)
Select Fitment This fitment option is for 1978 Buick Century, select this option for CENTURY 8 Cyl, 305 cid (5.0L)
Items in stock: 0
Engine/Motor - CENTURY 8 Cyl, 350 cid (5.7L)
Select Fitment This fitment option is for 1978 Buick Century, select this option for CENTURY 8 Cyl, 350 cid (5.7L)
Items in stock: 0

Interchange Fitment FAQs

Q: How does interchange fitment work for my 1978 Buick Century Engine/Motor?

A: All Engine/Motor options shown on this page are matched to your selected configuration: 1978 Buick Century. Used OEM parts are dismantled from donor vehicles as complete assemblies, and a specific interchange fitment is assigned during this process. Every detail shown in the fitment notes must match your vehicle exactly.

Q: What is an interchange fitment option for my 1978 Buick Century?

A: An interchange fitment option defines the exact donor vehicle configuration your part came from. For 1978 Buick Century, this may include engine size, VIN code, transmission model, drivetrain, axle ratio, and other critical identifiers. This data comes from VIN decoding, OEM information, and physical inspection of the donor vehicle.

Q: Why must every fitment detail match for my 1978 Buick Century?

A: Used OEM parts are not universal. If any fitment detail for your 1978 Buick Century differs from what is shown in the fitment notes, the Engine/Motor may not install, communicate with your vehicle, or function correctly. Always verify all fitment details before ordering.

Q: Where does the fitment information for my 1978 Buick Century come from?

A: Fitment information is captured when the donor vehicle is dismantled. The yard decodes the VIN for 1978 Buick Century, checks OEM data and interchange databases, and verifies details during physical inspection. The resulting fitment is then assigned to the Engine/Motor assembly.

Q: What if there are multiple fitment options for my 1978 Buick Century?

A: Many 1978 Buick Century vehicles were built with multiple configurations in the same year and trim. Trim name alone (XLT, Limited, Sport, etc.) is not enough. You must match the exact configuration shown in the fitment notes—such as engine size, transmission type, drivetrain, and axle ratio—before selecting a Engine/Motor.

Q: Where can I find my 1978 Buick Century VIN??

A: You can find the VIN for your 1978 Buick Century on the driver-side dashboard (visible through the windshield), inside the driver-side door jamb, and on your registration or insurance documents. The VIN helps confirm the correct configuration and fitment.

Q: How do I verify the correct engine fitment for my 1978 Buick Century?

A: For engine fitment, verify engine size (e.g., 2.7L, 3.5L, 5.0L), VIN engine code, fuel type, and whether the engine is turbocharged or naturally aspirated. These details must match the fitment notes for your 1978 Buick Century exactly before you select an engine.

Q: Where can I find my engine VIN code or engine ID on my 1978 Buick Century?

A: Engine identifiers can often be confirmed through VIN decoding, emissions labels under the hood, under-hood information stickers, and dealer service records for your 1978 Buick Century. Use this information to match the engine fitment exactly.

Attention!

There are 12 Engine Assembly choices for the 1978 Buick Century!!!
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