1967 Impala EFI Fuel Tank Kit with 255 LPH Pump
Dropping an LS or LT powerplant into a 1967 Impala often exposes the limits of the stock fuel tank but this EFI Fuel Tank Kit with 255 LPH Pump uses a three quarter inch deeper bowl and a five inch shorter profile to guarantee consistent pressure for engines up to 550 hp. Built from corrosion resistant stainless steel the assembly includes an integrated sending unit plus straps gaskets and all mounting hardware for a true bolt in application. By keeping the pickup submerged during hard acceleration and through cornering it prevents air ingestion and maintains EFI fuel delivery under load.
Engineered Sump Geometry Maintains Constant Fuel Pickup
The three quarter inch deeper bowl in this EFI tank kit increases fuel capacity while lowering the pickup point to avoid air ingestion during hard launches and cornering. By shortening the front to back profile by five inches, the tank drops into the original Impala frame rails without trimming or rework, yet still preserves ground clearance and ride height. The carefully contoured sump minimizes turbulence around the pump inlet, preventing vapor pockets that can interrupt supply under high lateral loads. As fuel sloshes in spirited driving, the design keeps the Walbro unit submerged to deliver uninterrupted EFI fuel delivery. This precision geometry is critical for engines up to 550 hp where steady pressure is nonnegotiable.
Integrated In Tank Module Reduces Installation Steps
This comprehensive fuel module groups the 255 LPH pump, sending unit, vent filter and mounting hardware into one ready to install assembly. By eliminating separate external fittings and brackets, the kit cuts potential leak points and speeds up the swap process. All required straps, gaskets and the filler neck align with factory mounting holes, so there is no fabrication or welding needed. Even DIY enthusiasts can achieve a true bolt in application that maintains the stock appearance and performance. The streamlined approach ensures a cleaner engine bay and fewer parts to track during service intervals.
304 Grade Stainless Steel Construction Fights Corrosion
Built from 304 grade stainless steel, this tank withstands ethanol blends and common road salts far longer than mild steel or molded plastic designs. TIG welded seams form a leak proof barrier capable of handling thermal shifts and chassis vibration over thousands of miles. The smooth interior resists sediment buildup, making routine cleaning more efficient and preserving filter life. On the exterior, the polished finish repels grime and moisture, ensuring the tank retains its resistance to pitting and rust. This material choice translates directly into reduced maintenance and extended service intervals.
Immersed Pump Placement Enhances Cooling and Silence
Locating the 255 LPH Walbro pump inside the fuel bowl takes advantage of the surrounding liquid as a natural heat sink, keeping temperatures lower than external mounts. Cooler operation maintains fuel density so pressure remains consistent even during sustained wide open throttle runs. In tank placement also dampens mechanical noise, delivering a quieter ride compared to undercarriage setups. The result is reliable flow for engines producing up to 550 horsepower without fear of starvation or vapor lock. Accurate level readings from the integrated sender further bolster driver confidence on long drives.
Count on consistent performance from this stainless steel EFI tank kit. For the Same fuel tank but with a 400LPH pump see our 1967 Impala EFI Fuel Tank Kit - 400 LPH Pump.