1968-1969 Chevy Chevelle EFI Fuel Tank Kit LS and LT Swaps with 400 LPH Pump
When installing an LS or LT swap into a 1968-1969 A body Chevelle, clearing frame rails and exhaust tubes while preserving factory mounts can stall even seasoned builders. This notched EFI fuel tank kit follows the 1968 and 1969 Chevelle's frame curves and exhaust path with precision measured in thousandths of an inch, eliminating trimming or trial fitting. Inside the steel shell, a 400 LPH pump stays fully submerged for steady fuel delivery under supercharged or 550 horsepower loads and helps prevent heat soak and vapor lock during spirited cornering. All components from the sending unit and filler neck to straps and gaskets arrive ready to bolt onto factory rails, letting installers move straight to engine management calibration.
Precision Notched Tank Design for Seamless Frame and Exhaust Clearance
The fuel tank is laser cut to follow the Chevelle frame rails and exhaust routing with thousandths of an inch accuracy, ensuring direct fitment without trimming or trial assembly. Notches for tire envelopes, fuel lines and sensor mounts align with original chassis geometry, preserving factory mount points and avoiding interference under hard cornering. By eliminating the need for modifications installers maintain structural integrity and reduce project time. This precision contour matching also prevents abrasion and stress on hoses during suspension travel, contributing to long term reliability. Builders benefit from a straightforward swap process that retains the classic look and factory underbody layout.
Pump Immersion for Stable Fuel Delivery under High Load
Mounting the 400 LPH pump entirely inside the steel tank shell takes advantage of surrounding fuel as a coolant, limiting heat soak and extending service life even under supercharged or 550 horsepower conditions. Submerging the pump module prevents vapor lock during aggressive acceleration or sustained cornering, maintaining consistent fuel pressure for reliable engine response. This design also acts as a shield against road debris and environmental contaminants, reducing strain on downstream filters. Internal placement shortens fuel line runs and cuts potential leak points, simplifying routing and improving safety. Additionally, enclosing the pump within the tank helps damp mechanical noise for a quieter cabin environment without extra insulation.
Comprehensive Fuel Assembly for Fast Installation
This all in one kit arrives complete with pump module, sending unit, filler neck, vent filter, gasket set, straps and mounting hardware ready to install on factory rails. Each component matches original fill and vent connections, eliminating the need for adapters or custom brackets and cutting installation steps dramatically. Consolidating parts in a single assembly reduces potential leak paths and ensures proper alignment of all fuel system interfaces. Installers can bolt the tank in place and proceed directly to engine management calibration, speeding up project timelines. The unified design also simplifies future service access by keeping all connections within a familiar layout.
Durability Backed by Rigorous Quality Testing
Built from corrosion resistant steel with a protective finish, the tank withstands moisture, road salt and modern fuel additives without compromise. Weld seams undergo pressure and vibration tests that mimic real world cornering forces and highway conditions, assuring leak free performance for high output engine conversions. Every assembly passes a series of inspections before shipping, verifying structural integrity and correct fitment. This verification process provides confidence that the system can handle spirited driving and boost levels without compromise. The robust construction and testing regimen make this kit a dependable foundation for any LS or LT swap project.
Trust in MuscleRods for a precision fit and reliable performance. To match smaller capacity fuel pump Kit at 255 LPH requirements see our 1968-1969 Chevelle 255 LPH notched pump Tank Kit (notched).