High Flow Surge Pump for 1984-1989 Corvette Radiator
Tackling fuel starvation during aggressive cornering and rapid throttle transitions, this surge pump is designed to safeguard fuel delivery when fitting an LS or LT engine into the C4 Corvette chassis. Its precision billet aluminum housing keeps the dual 255lph Walbro pumps fully submerged to preserve prime under heavy acceleration and sustained g forces. An anodized finish resists corrosion from engine heat and common additives while the -6 AN fittings align with factory frame rails for leak free connections in both automatic and manual setups. Installation follows stock radiator brackets so no custom fabrication is needed and the pump integrates neatly with existing coolant plumbing.
Precision Machined Billet Aluminum Housing
The billet aluminum housing is milled from a solid block with CNC tools to deliver remarkable structural strength under high coolant pressures. By removing welded seams it avoids potential weak points that can shift shape or fail over time, preserving precise inlet geometry. The rigid structure also spreads heat away from pump internals during sustained track use, helping to maintain consistent operating temperature. Precise port alignment ensures a tight seal with factory gaskets and hoses, which in turn prevents leaks and preserves fuel pressure under load. This design choice is fundamental for drivers who demand consistent performance from an LS or LT power plant in a C4 chassis.
Advanced Anodized Finish for Lasting Corrosion Protection
Anodizing creates a durable oxide layer on the aluminum surface that stands up to moisture, coolant additives and road chemicals without peeling or flaking. Unlike paint or plating, this bonded finish remains intact through repeated temperature cycles and acid exposure, so critical passages and mounting bosses stay protected against corrosion. Maintenance of the original finish requires only routine cleaning, yet service life of the component is extended since surface degradation is kept at bay. The result is a pump housing that retains a factory fresh appearance and reliable performance over many seasons of spirited driving.
Submerged Dual Walbro 255lph Pumps for Reliable Fuel Delivery
Inside the precision housing two Walbro pumps each rated at 255 litres per hour operate fully submerged to guard against fuel starvation during sharp turns or rapid throttle shifts. By keeping the pumps under liquid at all times the design assures consistent prime even under sustained g forces, eliminating the risk of vapor lock and pressure drops. These combined units deliver dependable flow across the entire rpm range, which sharpens throttle response and supports smooth power delivery for both automatic and manual setups. Consistency in fuel supply is especially important when fitting higher output LS or LT engines into a Corvette chassis.
Integrated -6 AN Connections and Installation Simplicity
Precision machined -6 AN ports allow direct connection to existing fuel lines without the need for adapter fittings, producing a leak proof seal that technicians can trust. The supplied mounting brackets bolt to stock frame rails or underhood bracket locations, minimizing the need for custom work and preserving original chassis geometry. Clear access to electrical connectors and service points speeds up installation and simplifies routine inspections. Whether paired with an automatic or manual transmission layout, this pump integrates seamlessly with the factory hard lines and mounting hardware for a clean underhood installation.
This pump delivers reliable flow and fits precisely in your Corvette fuel system. For a Similar EFI Surge Tank but this is a Single Pump see our MuscleRods EFI Surge Tank - Single Pump.