Product Details
- Holley In-Tank Retrofit Fuel Module with Return offers a convenient, no-weld method for upgrading to a modern in-tank EFI fuel delivery system
- Designed to install in stock fuel tanks or fuel cells between 7 and 12 inches deep using standard hand tools
- Compact 5-inch diameter assembly rises only 1.275 inches above the tank flange to maximize under-floor clearance
- Capable of supporting up to 550 horsepower in EFI applications or 700 horsepower in carbureted setups at 60 PSI and 13.5 volts, drawing approximately 10.4 amps depending on system layout
- Compatible with Terminator EFI, Sniper EFI, MSD Atomic EFI, and a variety of other throttle body and multi-port EFI systems
- Equipped with a 360-degree adjustable clamping mechanism, 3 x 15 inch Hydramat, durable die-cast aluminum construction, 1/4 inch NPT ports, optional roll-over valve, and available 255 LPH or 400 LPH fuel pump options
- Covered by a 1-Year Limited Warranty
Making the move to electronic fuel injection should be an upgrade you look forward to—not a project that stalls progress. When fuel system planning starts to feel complicated, a purpose-built module can remove the guesswork. The Holley In-Tank Retrofit Fuel Module with Return is designed to streamline your conversion while delivering the advantages of modern in-tank fuel delivery.
This retrofit assembly allows you to convert a stock fuel tank or fuel cell into an in-tank EFI setup using common hand tools, with no welding or fabrication required. Designed for tanks between 7 and 12 inches deep, the module features a compact 5-inch diameter design and extends just 1.275 inches above the tank mounting surface to help with clearance. Depending on pump selection and system configuration, it can support up to 550 horsepower in EFI applications or 700 horsepower in carbureted setups at 60 PSI and 13.5 volts, drawing approximately 10.4 amps. It is well suited for systems such as Terminator EFI, Sniper EFI, MSD Atomic EFI, and other TBI or multi-port EFI conversions.
A unique clamping mechanism permits installation in a variety of tank locations, including alongside the factory sending unit, and allows full 360-degree rotation for simplified fuel line routing and wiring orientation. The included 3-inch by 15-inch Holley Hydramat, featuring six clocking pin positions, is engineered to help maintain consistent fuel pickup even under demanding driving conditions. Constructed from die-cast aluminum for strength and corrosion resistance, the module utilizes 1/4-inch NPT ports for flexible plumbing. Optional rollover valve compatibility and available 255 LPH or 400 LPH pump configurations allow you to tailor the system to your performance goals. Backed by a 1-Year Limited Warranty.