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1988 Chevy 3500 7.4L 454 V8 Engine

7.4L • 454 V8 • 8-Cylinder • Gasoline • VIN N • 8th Digit • EFI/TBI

Looking for a 1988 Chevy Truck 3500 engine replacement? This application uses Chevrolet's big-block 7.4L 454 V8, identified by VIN N in the 8th digit. The correct engine should be verified against your complete VIN and vehicle configuration before ordering.

1988 Chevy Truck 3500 engine

1988 CHEVY 3500 7.4L 454 ENGINE OVERVIEW

The 1988 Chevrolet 3500 was available with multiple engine configurations, so identifying the correct application is important when replacing the engine. This page covers the 7.4L 454 V8 with VIN N in the 8th digit and EFI/TBI fuel delivery. Parts catalogs specifically list this configuration for the 1988 C3500.

The 7.4L 454 was Chevrolet's big-block V8 option for these heavy-duty trucks. Contemporary service information identifies the 7.4L as a naturally aspirated OHV V8, while repair documentation notes that 1988–1995 7.4L truck engines used Throttle Body Injection (TBI).

For a replacement, don't rely on “454” alone. The year, truck series, VIN engine code, fuel system and other vehicle-specific details should all be checked.

1988 Chevy Truck 3500 engine bay
Engine Identification

454 BIG BLOCK // ENGINE SPECIFICATIONS

Key specifications and fitment details for the 1988 Chevrolet 3500 Series 7.4L 454 V8 engine.

Big Block Chevrolet
454°
7.4L V8 • 8-Cylinder
A heavy-duty Chevrolet big-block engine application used in the 1988 3500 Series truck.
N
VIN Engine Code
8th Digit
7.4L
Displacement
230 HP
Factory Rating*
385 LB-FT
Factory Torque*
EFI / TBI
Fuel Delivery
1988
Model Year
3500
Truck Series
VIN N
8th Digit
OHV V8
Architecture
!
Fitment matters. Always verify the complete VIN, engine code, fuel system and vehicle configuration before ordering.
*Factory output figures shown are for the applicable 7.4L/454 configuration documented for the 1988 Chevrolet truck. Specifications can vary by application and configuration.

Need a Used Engine for Your 1988 Chevy 3500?

Replacing the engine in an older heavy-duty truck starts with identifying the exact original application.

The 1988 Chevy 3500 was available with multiple engine choices, including the 7.4L 454 V8. The VIN N 8th-digit application is specifically identified in parts catalogs as the 454 / 7.4L EFI engine.

If your truck matches this application, send us your complete VIN and vehicle information. Our team can check available replacement options and help confirm the appropriate engine before you purchase.

HOW TO IDENTIFY THE CORRECT 454 ENGINE

For a classic truck like the 1988 Chevy 3500, the engine size alone isn’t enough.

Check these details:

  • Year: 1988
  • Make: Chevrolet
  • Series: 3500
  • Engine: 7.4L / 454
  • Cylinders: 8
  • VIN engine code: N
  • VIN position: 8th digit
  • Fuel delivery: EFI/TBI
  • Fuel: Gasoline

The exact C3500 fitment is listed as 8 Cyl, 454 cid (7.4L, VIN N, 8th digit, EFI).

Used 7.4L 454 Engine For Sale

If you’re searching for a 454 engine for sale, you’ll find engines from many different Chevrolet and GMC applications.

That doesn’t mean every 454 will be the correct replacement for your truck.

A replacement engine should be compared using:

Year → Truck Series → Displacement → VIN Code → Fuel System → Vehicle Configuration

This is especially important with older GM trucks because 7.4L engines can differ in fuel delivery, accessories, emissions equipment and other application-specific components.

 


Why Choose AutomartAutoparts?

Finding the right used engine or transmission can be stressful, especially when you're not sure about compatibility, availability, or where to find the right replacement. Automart Auto Parts helps make the process simple. We have helped many customers find replacement engines and transmissions for a wide range of vehicles, and our parts specialists are here to help you identify the right option for your vehicle.

With so many used engines for sale online, finding the correct replacement can be difficult. Automart Auto Parts helps make the process simpler by helping customers identify appropriate used engine applications based on their vehicle information.

With multiple warehouse locations across the state, we can help customers connect with available parts closer to their area. Our network and inventory sources allow our team to check available replacement engines and transmissions based on your vehicle's requirements.

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Trusted by Customers

We've helped many customers with their replacement engine and transmission needs, providing assistance throughout the process.

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Multiple Warehouse Locations

With multiple warehouse locations across the state, our network helps us serve customers in different areas and check for available parts closer to them.

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Fitment Assistance

Not sure which engine or transmission you need? Our parts specialists can help verify your vehicle and part information before you move forward.

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Availability & Pricing

We can check current availability and provide pricing information based on the replacement part your vehicle requires.


A Simpler Way to Find Your Replacement Part

You don't have to spend hours comparing used motors for sale and trying to determine which engine will work with your vehicle.

Tell our team your vehicle's year, make, model, engine size and VIN when available. Our parts specialists can use that information to help identify the appropriate replacement application and check available options.

Whether you need a used engine for a car, truck or SUV, starting with accurate vehicle information makes it easier to narrow down the correct replacement.

Looking For Used Motors Near Me?

Searching for used motors near me can bring up many different engines.

For a 1988 Chevy 3500, location isn’t enough to establish compatibility.

The replacement should match the specific application, particularly the:

7.4L → 454 → VIN N → 8th Digit → EFI/TBI

If you’re unsure about the exact configuration, provide the complete VIN and let the application be verified before ordering.

 

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How It Works

Finding the right replacement engine or transmission is simple. Tell us about your vehicle and our parts specialists will help you find the right replacement option.

01
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Tell Us Your Vehicle

Provide your vehicle's year, make, model and engine or transmission information. We may also ask for your VIN to help confirm compatibility.

02
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Tell Us What You Need

Let us know whether you're looking for a used engine, replacement engine, used transmission or replacement transmission.

03
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We Check Availability

Our parts specialists check available inventory and supplier options to help identify a suitable replacement for your vehicle.

04
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Get Your Quote

Once an appropriate option is identified, our team can provide available pricing and relevant part details for you to review.

FAQ

What engine does the 1988 Chevy 3500 use?

The 1988 C3500 was offered with several engine options. The application covered on this page is the 7.4L / 454 V8, identified as VIN N in the 8th digit.

454 refers to the engine's approximate displacement in cubic inches. Chevrolet's 7.4L V8 is commonly referred to as the 454 big block.

A high-mileage work truck can eventually develop major engine problems.

Possible reasons for replacement include:

  • Severe internal engine damage
  • Low compression
  • Excessive oil consumption
  • Crankshaft or bearing damage
  • Cylinder or piston damage
  • Major overheating
  • Severe coolant contamination
  • External collision damage
  • Long-term wear

A proper mechanical diagnosis should be performed before deciding that the complete engine needs replacement.

The 7.4L 454 is Chevrolet's well-known big-block V8. The engine is an OHV, naturally aspirated gasoline V8.

For the 1988 truck application, repair documentation identifies the fuel system as Throttle Body Injection (TBI). The system uses two injectors mounted in a throttle-body housing, rather than the later sequential multi-port system used on newer 7.4L engines.

This makes the fuel-system configuration an important part of replacement-engine identification.

The 1988 7.4L truck application used Throttle Body Injection (TBI). Repair documentation notes that 1988–1995 big-block 7.4L truck engines used TBI.

The documented 1988 Chevrolet truck specification lists approximately 230 horsepower and 385 lb-ft of torque for the 7.4L/454 configuration.

Explore More Engine Applications

Looking for a replacement engine for another vehicle?

Explore our vehicle-specific engine pages for information about engine specifications, fitment, VIN identification and replacement options.

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