DESCRIPTION
Upgrade your fuel system with the Raceworks 340LPH Fuel Pump, a high-performance in-tank solution engineered for reliability, flow, and compatibility with modern fuels, including E85. Designed as a direct equivalent to the popular Walbro 255 (GSS342), this pump delivers increased flow, improved efficiency, and exceptional durability.
The RW EFP-500 will support 600hp at the engine or ~500hp at the wheels on E8.
The Raceworks EFP-500 pump flows an impressive 340 litres per hour at 40psi, making it ideal for engines running moderate boost or enhanced naturally aspirated setups. Whether you’re tuning for more power or upgrading for ethanol fuel use, this pump ensures consistent and stable fuel delivery under demanding conditions.
Built with corrosion-resistant components, the Raceworks 340LPH pump is fully E85-safe, offering excellent longevity and reliability even in ethanol-heavy environments. Its 39mm body allows it to suit a wide range of OEM fuel baskets and aftermarket hangers.
340LPH high-flow output at 40psi
E85 safe – compatible with ethanol-based fuels
39mm body diameter for wide vehicle fitment
Direct equivalent to Walbro 255 GSS342
Suitable for turbocharged, supercharged, and high-performance NA builds
Quiet, efficient, and durable internal design
Includes filter, hose, clamps, and wiring pigtail (if applicable)
Street, strip, track, and performance builds
E85 conversions and flex-fuel applications
Vehicles requiring more flow than OEM pumps
Upgrades from the Walbro 255 for improved efficiency
Raceworks is known for producing high-quality performance components built to withstand harsh conditions. The EFP-500 delivers the flow, stability, and reliability your build needs—at an exceptional value.
Equip your fuel system for performance with confidence.