1973-1991 Chevy Blazer Suburban GMC Jimmy LS Swap Fuel Tank Kit with 255 LPH Pump
When fitting an LS engine into a 1973 to 1991 Chevy Blazer, Suburban or GMC Jimmy this fuel tank kit provides the essentials to maintain steady delivery under varied driving conditions. Its reinforced steel reservoir aligns with original frame bosses and offers capacity support for engines up to 550 hp while preserving factory geometry and ground clearance. Supplied with a calibrated 255 LPH pump, sending unit, vent filter and all necessary hardware the kit prevents lean spikes during rapid throttle transitions. Installers simply drop the unit into the stock mounts and secure with factory straps without cutting or welding.
Custom Fit to 1973–1991 Chevy Blazer and Suburban Frames
This fuel tank kit is engineered to match the original frame rails and mounting bosses on 1973 through 1991 Chevy Blazer, Suburban and GMC Jimmy models, preserving the factory ride height and ground clearance. By dropping directly into the stock location and bolting on with existing straps, installers avoid cutting, welding or altering the chassis. The sending unit is calibrated to work with the factory gauge circuit, so fuel level readings remain accurate without rewiring the dash harness. Maintaining the vehicle's heritage appearance underpins the design, while precise fitment reduces installation time and protects frame integrity. This approach lets enthusiasts retain classic styling even as they upgrade to modern electronic fuel injection.
Calibrated 255 LPH Pump Ensuring Consistent Fuel Delivery
At the heart of the assembly lies a 255 LPH Walbro pump sized to support LS engines up to 550 hp without pushing beyond its flow envelope. Its output curve is tuned to provide the stable pressure and volume required during rapid throttle transitions, preventing lean spikes that can damage valve train parts or trigger ECU fault codes. EFI systems demand precise fuel metering from idle through full throttle, and this pump delivers a linear response across the rev range. Whether cruising or powering through off-road obstacles, drivers benefit from uninterrupted fueling and smooth engine response. The result is a reliable delivery system that safeguards performance and longevity.
Integrated Tank Module Simplifies EFI Conversion
This comprehensive in tank module unifies the fuel pump, sending unit, vent filter, gaskets and mounting hardware into a single ready-to-install package. The built-in vent filter traps vapors and debris before they reach injectors, reducing the risk of engine stalling under high temperature or high load conditions. Supplied gaskets and fasteners ensure a leak-free seal between the tank, filler neck and module, eliminating extra trips to sourcing centers. By bundling all critical components, the kit avoids part compatibility issues and slashes hours off the swap process. Installers gain a streamlined workflow and a tidy underbody setup that meets factory standards.
Reinforced Steel Reservoir with Internal Baffles for Durability
Constructed from heavy-gauge steel, the tank resists dents and deformation caused by road debris, suspension movement and cargo shifts, shielding internal parts from damage. Its robust walls stand up to corrosion and impacts during daily commutes or rugged off-road excursions. Inside, strategically placed baffles quell fuel surge in sharp turns or sudden stops, keeping the pump fully submerged and preventing air pockets that lead to pressure drops. Together, these design elements deliver a durable reservoir that upholds steady fuel pressure in every driving scenario. The result is long-term reliability and consistent engine performance mile after mile.
Designed to integrate seamlessly with LS conversions this kit assures reliable fueling under all conditions. To upgrade to a Larger capacity fuel pump Kit at 400 LPH see our 1973-1991 Blazer/Suburban 400 LPH pump Tank Kit.