400 LPH Fuel Line and Regulator Kit for LS and LT Engines
Swapping an LS or LT engine into a custom build often depends on a precise fuel delivery setup and the Fuel Line and Regulator Kit - 400 LPH brings a 400 liter per hour pump with a regulator that holds steady pressure under varying loads. It pairs PTFE braided stainless steel lines with leakproof fittings and an adjustable fuel pressure regulator featuring a vacuum/boost port to match fuel flow to engine demand. Complete returnless LS and LT fitment plus included filters, clamps, and connectors make installation straightforward and efficient. Whether you choose forced induction or a naturally aspirated route, this kit addresses the critical need for constant flow and accurate pressure control.
Precision Adjustable Regulator With Vacuum and Boost Reference
The adjustable regulator at the heart of this kit lets you dial in the ideal fuel pressure for a 400 LPH pump, ensuring steady delivery under wide-ranging engine demands. By tapping into both vacuum and boost signals, the regulator continuously adapts to changes in intake manifold pressure, preventing lean spikes during acceleration or under forced induction. This capability is crucial when turbo or supercharger setups push fuel requirements beyond stock parameters. The finely tuned control also helps maintain an accurate 58 psi reference, matching OE specifications for reliable performance on both naturally aspirated and boosted LS or LT engines.
Durable PTFE Braided Fuel Lines With Protective Jacket
Constructed from PTFE stainless steel braid, the fuel lines combine exceptional chemical resistance with abrasion strength, guarding against ethanol blends and elevated under-hood temperatures. The black protective jacket shields wiring looms and painted surfaces from incidental contact, preserving the engine bay appearance over years of use. PTFE's low permeability also means minimal fuel vapor loss, reducing the risk of leaks or fuel odor in the cockpit. Together, these qualities translate into a fuel delivery network that stands up to modern pump gas formulations and the rigors of track or street applications.
Streamlined Returnless Architecture for LS and LT Rails
Adopting a returnless fuel system simplifies plumbing by eliminating the need for a separate return line to the tank, which in turn reduces heat soak and potential leak points. This direct-feed layout maintains consistent pump inlet pressure, enhancing flow stability throughout the RPM range. It also aligns with the design of late-model LS and LT fuel rails, ensuring plug-and-play compatibility without extensive modifications. With fewer hoses and fittings to install, the setup time is cut and overall reliability is improved, making it a straightforward upgrade for custom engine swaps.
Count on precise fuel delivery and explore the same kit at a smaller capacity with our Fuel Line and Regulator Kit - 255 LPH.