LS and LT Fuel Tank Kit for 1973-1991 Chevy Blazer/Suburban/GMC Jimmy
Project builders tackling an LS or LT swap in a 1973 to 1991 Chevy Blazer, Suburban or GMC Jimmy know factory fuel tanks can drop pressure during sharp throttle inputs. This 1973 to 1991 Blazer/Suburban Fuel Tank Kit with 400 LPH pump uses precision port matching and a sturdy steel shell to sustain flow under steep grade climbs or aggressive throttle transitions. Preinstalled sending module and factory standard seals arrive calibrated to original specs so fuel level readings remain accurate under all driving conditions. Mounting points match the stock footprint for a straightforward install while corrosion resistant construction and reinforced welds stand up to ethanol blends and chassis vibration.
Precision Flow Calibration for LS and LT Engine Demands
The 400 LPH pump in this fuel tank kit is matched to carefully measured inlet and outlet openings that align with LS and LT engine requirements. By sizing each port to exact tolerances, the system maintains smooth fuel delivery when powerplants exceed 550 horsepower or when forced induction is in use. This approach prevents fuel pressure from dropping during sudden throttle openings and steep climbs, reducing the risk of cavitation under heavy load. Builders will notice a consistent response in street, trail or track settings thanks to this engineered balance of flow and pressure.
Heavy Duty Steel Shell for Corrosion and Vibration Resistance
Constructed from premium grade steel, the tank body is built to endure ethanol fuel blends and moisture that can accelerate wear in stock units. Weld seams receive extra reinforcement to seal out leaks and to tolerate frame flex or chassis vibration on uneven terrain. Oversized straps and robust brackets secure the tank firmly to the frame rails while isolators dampen shock from road impacts. This combination of materials and fabrication techniques ensures long service life and resistance to unexpected stress cycles.
Seamless OEM Footprint for Easy Installation
All mounting points on this assembly mirror the original tank layout on 1973 through 1991 Chevy Blazer, Suburban, and GMC Jimmy models, allowing installers to drop it in place without cutting or welding the floor pan. The filler neck and strap locations match factory positions so technicians can reuse stock hardware and skip custom shimming or bracket fabrication. As a result, installation time is cut significantly and chassis ground clearance remains unchanged. Even installers new to LS or LT swaps will find the process clear and efficient.
Integrated Pump Module and Fuel Level Sensing Integration
This kit arrives with a fully assembled in tank module that combines the high flow pump, sending unit, gaskets, filler neck, vent filter and mounting hardware into a single package. Having these components preinstalled to OEM specifications removes the need to sort separate seals or match mismatched parts during assembly. The sending unit calibration mirrors factory accuracy to provide reliable fuel level readings under any driving angle or motion. With this consolidated design, installers gain confidence that fuel delivery and data monitoring will function correctly from the moment of first startup.
Rely on MuscleRods quality for consistent flow and accurate level readings. For a smaller capacity fuel pump Kit at 255 LPH consider our 1973-1991 Blazer/Suburban 255 LPH pump Tank Kit.