Surge Pump for 1984-1989 Corvette Radiators (Auto and Manual Transmissions)
For Corvette enthusiasts installing an LS or LT engine into a C4 chassis, maintaining constant fuel flow under hard cornering and rapid acceleration can be the difference between smooth throttle response and frustrating hesitation. This surge pump mounts directly to the original Corvette radiator from 1984 to 1989 and supports both automatic and manual transmissions so the high output Walbro 255lph unit remains fully submerged during aggressive maneuvers. Constructed from CNC billet aluminum with an anodized finish, the assembly resists corrosion while keeping mass to a minimum and sustaining integrity through repeated thermal cycles. Installation uses prewired connections and standard AN fittings to simplify routing in engine bays and deliver reliable leak free operation from the first ignition.
Optimized Submerged Pump Layout for Consistent Fuel Delivery
By situating the Walbro 255lph unit entirely below the fuel level, this design eliminates the risk of vapor lock and starvation when lateral forces spike in tight corners or under hard acceleration. Continuous immersion ensures the pump draws liquid at a steady rate, smoothing out pressure spikes that could otherwise cause hesitation. In practice, drivers notice more predictable throttle response as system pressure remains locked in, even during sustained high-g maneuvers. This approach makes the difference between a momentary stumble and seamless power delivery when track conditions or spirited driving demand absolute reliability.
6061-T6 Billet Aluminum Housing for Strength and Lightness
Crafted from aerospace-grade 6061-T6 aluminum, the pump housing balances exceptional rigidity with minimal mass. Precision CNC machining maintains tight tolerances on mating surfaces and threaded ports, reducing stress points that can lead to leaks over time. The choice of alloy resists warping under heat and vibration, preserving alignment of internal components through repeated thermal cycles. By combining stiffness and a low weight footprint, the billet construction integrates smoothly into the C4 chassis without compromising balance or adding unnecessary bulk under the hood.
Anodized Finish Delivering Lasting Corrosion Resistance
The anodized surface treatment forms a dense oxide layer that protects bare aluminum from chemical attack, abrasion, and moisture intrusion. Unlike paint or powder coat, the finish becomes an integral part of the metal, eliminating the risk of peeling or flaking under road debris or heat exposure. This barrier preserves both structural integrity and visual appeal through years of use with gasoline, ethanol or methanol fuels. Technicians appreciate that the hard coating resists scratches, ensuring fittings and seals remain seated against pristine, uncontaminated metal.
Plug-and-Play Integration and Broad Fuel Compatibility
Prewired connections tailored to the Walbro 255lph pump slash installation time for both professional shops and DIY enthusiasts. A dedicated wiring pigtail and included mounting hardware remove the guesswork, while six -6 AN ports allow secure, leak-free hose attachment without extra adapters. Compatibility with gasoline, ethanol and methanol opens performance tuning flexibility, letting builders match fuel type to application goals. This streamlined setup minimizes error points under the hood and delivers reliable operation from the very first engine start.
Built for unwavering fuel delivery this MuscleRods surge pump ensures performance you can trust. For a similar EFI surge tank but this is a dual pump check out our MuscleRods EFI Surge Tank - Dual Pumps.