DIY In-Tank 340 LPH Fuel Pump Kit for LS and LT Engines
When adding an LS or LT engine to a custom build fuel starvation during hard launches and cornering can lead to lean spots and hesitation so the DIY in-Tank Fuel Pump Kit-340 LPH secures a constant supply by trapping fuel around the inlet. Its CNC machined baffle with integrated bladder captures residual fuel and prevents air slugs while a dedicated hanger lock ring and drill guide guarantee precise installation in both EFI and carbureted systems. With a 340 LPH output this assembly supports future induction changes without swapping pumps giving builders the capacity to push horsepower limits confidently.
Consistent Fuel Delivery Under Dynamic Driving Forces
The heart of this in-tank solution lies in its CNC machined baffle combined with a flexible bladder, which captures residual fuel around the pump inlet even during rapid acceleration or heavy cornering. By maintaining a dedicated reservoir at the pickup point, the system prevents air ingestion and lean spots that can compromise throttle response. This integrated approach replaces the need for an external surge tank and ensures uninterrupted flow at all times. Builders will notice smoother power delivery whether launching off the line or navigating winding roads.
340 LPH Capacity Supporting Engine Upgrades
With a 340 liters-per-hour output, this pump meets the demands of stock LS and LT engines while providing headroom for future modifications such as turbocharging or increased injector duty cycles. The extra flow capacity ensures stable fuel pressure under peak load, preserving combustion consistency and preventing drop-off at high revs. This level of performance means you can pursue power gains without a secondary pump upgrade, saving time and cost. The result is a robust foundation for both street and track applications.
Precision Tank Modification with Drill Guide and Lock Ring
Installation accuracy is critical, and this kit's purpose-built drill guide guarantees a perfectly centered tank opening before any cutting. The included hanger and lock ring assembly then secure the pump in place while forming a reliable seal against the tank wall. These tailored components minimize the risk of misalignment, leaks, or vibration-induced loosening over time. Comprehensive instructions guide even first-time installers through each step, making the retrofit accessible and mistake-resistant.
Material Selection for Corrosion Resistance and Reliability
Key metal components are crafted from stainless steel and corrosion-resistant aluminum alloys that stand up to ethanol blends and contaminants found in modern fuels. High-grade polymer fittings and seals retain flexibility and integrity under elevated temperatures and chemical exposure, avoiding deformation or wear. These material choices extend service intervals and reduce maintenance costs while ensuring long-term reliability. The result is a fuel assembly engineered to endure daily driving demands and track-driven stress alike.
This assembly delivers confident performance under dynamic conditions and for a smaller capacity fuel pump Kit at 200 LPH consider our DIY in-Tank Fuel Pump Kit-200 LPH.