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Product Summary

63-67 Chevy Corvette, In Tank Electric Fuel Pump Type

    Rebates Available

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    Key Specs

    MFG. Part #12-310
    Electric Fuel Pump TypeIn Tank
    Free Flow Rate67 GPH / 255 LPH
    Maximum Pressure58 psi
    Voltage12 volts
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    Need To Know

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    Holley 12-310 Details

    • This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower
    • A pre-calibrated fuel-level sending unit designed to work with the factory fuel gauge for this application is included
    • This module also features a HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick-up and also provides protection from contaminates

    Fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of purchasing and installing an external fuel pressure regulator - no separate return line is required because this module returns excess fuel right inside the tank! This 1963-67 Corvette Muscle Car EFI Fuel Pump module was designed as a direct replacement for your factory pick-up and sending unit. There is no need to purchase a custom EFI fuel tank. You can even retain the factory fuel hard line - just connect the outlet of the pump module to the hard line on your vehicle with EFI-rated fuel hose and hose clamps available in the Earls Vapor Guard line. This Muscle Car EFI Module includes a 255 LPH fuel pump and a Holley HydraMat. HydraMat is an amazing patent-pending fuel reservoir system that reduces fuel starvation issues that might otherwise occur while cornering, accelerating, stopping, traversing inclines, and during low fuel conditions.

    Application

    1963-1967 Corvette

    Rebates

    Holley Fuel Up Spring Savings Event 2026

    Save 10% instantly on select products across the Holley family of performance brands during the annual Holley Fuel Up Spring Savings Event 2026. Instant rebate period has been extended and now runs from March 30, 2026 through April 19, 2026.

    Holley 12-310 Specifications

    KEY SPECS
    MFG. Part #12-310
    BrandHolley
    Electric Fuel Pump TypeIn Tank
    Free Flow Rate67 GPH / 255 LPH
    Maximum Pressure58 psi
    Voltage12 volts
    GENERAL
    InlineNo
    Fuel System TypeEFI
    Fuel TypeGasoline
    Electric Fuel Pump Outlet Fitting(s)5/16" Hose Barb
    Horsepower Rating (Naturally Aspirated)550 HP
    Fuel Pressure Regulator IncludedYes
    Sending Unit IncludedYes
    Fuel Filter IncludedYes
    Gasket(s) IncludedYes
    Wiring Harness IncludedYes
    Mounting Bracket IncludedYes
    Mounting Hardware IncludedYes
    Sold in QuantityKit
    GTIN Code090127062531

    Fitment

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