DeatschWerks DW420 Series

1984–1985 Chevrolet Corvette Base 5.7L V8

Part #: 9-421-1027

Overview

The DeatschWerks DW420 Series 420lph In-Tank Fuel Pump with Install Kit is a high-performance upgrade designed specifically for your Chevrolet Corvette from 1984 to 1985 equipped with a 5.7L V8 engine. This fuel pump is engineered to deliver reliable, consistent fuel flow, supporting the demands of modified or high-performance applications. Whether you're restoring a classic or enhancing your Corvette's fueling system for spirited driving, this pump provides the power and dependability you need.

Designed for enthusiasts who seek improved fuel delivery, the DW420 Series pump ensures your vehicle maintains optimal performance under demanding conditions. Its robust construction and precise engineering make it an ideal choice for those looking to support increased horsepower, upgraded fuel injectors, or a more aggressive tune. With this upgrade, you'll experience better throttle response, smoother acceleration, and improved overall drivability.

Key Features

The DW420 Series fuel pump offers a combination of advanced technology and durable construction to meet the needs of performance-minded Corvette owners. Key features include:

• High-capacity 420 liters per hour (lph) flow rate, providing ample fuel delivery for modified engines and high-power setups.
• In-tank design with a robust pump module that ensures consistent fuel pressure and flow, reducing the risk of fuel starvation during spirited driving or track use.
• Constructed with high-quality materials, including a corrosion-resistant pump body and a durable internal motor, to ensure longevity and reliable operation.
• Compatible with OEM fuel systems, making installation straightforward with the included install kit.
• Engineered for quiet operation and minimal vibration, contributing to a smoother driving experience.
• Supports increased horsepower and torque, making it suitable for upgraded fuel injectors, turbocharged, or supercharged applications.
• Designed to meet or exceed OEM standards for quality and performance, ensuring your Corvette maintains factory-like reliability with enhanced capacity.

Construction & Design

The DeatschWerks DW420 Series pump features a precision-machined, corrosion-resistant housing that protects the internal components from the harsh environment inside the fuel tank. Its compact, modular design allows for easy installation and compatibility with the factory fuel tank setup. The pump utilizes a high-quality, brushless motor that provides efficient, reliable operation with reduced heat generation and wear.

The included install kit contains all necessary components, such as mounting hardware, wiring, and fittings, to facilitate a seamless upgrade. The pump's design emphasizes durability and performance, ensuring consistent fuel delivery over the long term, even under high-demand conditions. Its low noise profile and vibration levels make it suitable for daily drivers and performance builds alike.

Installation & Fitment

The DeatschWerks DW420 Series fuel pump is designed as a direct replacement for the factory in-tank pump in your 1984–1985 Chevrolet Corvette with a 5.7L engine. The installation process is straightforward, utilizing the included install kit and OEM mounting points. No cutting, drilling, or complex modifications are required, making it a convenient upgrade for both DIY enthusiasts and professional installers.

Ensure your vehicle is properly supported and the fuel system is depressurized before installation. The kit includes all necessary components for a secure and leak-free fitment, allowing you to restore or enhance your Corvette's fueling system with confidence.

What's Included

• DeatschWerks DW420 Series 420lph in-tank fuel pump
• Complete install kit with mounting hardware
• Wiring harness and connectors
• Fittings and clamps
• Installation instructions

Ideal For

• Corvette enthusiasts restoring or upgrading their fuel system
• Performance builders seeking increased fuel capacity for high-power setups
• Daily drivers and weekend warriors looking for reliable, high-flow fuel delivery
• Anyone aiming to improve throttle response and engine consistency under load