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Kingman Speed®  |  SKU: KING-GSL392
New arrival

Kingman Speed® GM GEN III/IV LS 255LPH 12V 58 PSI Returnless EFI Fuel System

£71.58
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Description

This Fuel Pump kit is an external 12V fuel delivery bundle designed for custom Gen III/IV LS engine swaps. It features a GSL392-style 255 liters-per-hour (LPH) inline pump, a fixed 58 PSI fuel filter/regulator, and -6AN adapter fittings to simplify converting older fuel systems into modern returnless electronic fuel injection (EFI) setups.

GSL392 External Pump: Delivers 255 LPH flow capacity at 12V operation, built to support performance or turbo/supercharged LS builds. 

58 PSI Filter-Regulator: Maintains a steady 4 BAR (58 PSI) pressure standard for LS fuel rails while bypassing unused fuel back to the tank. 

-6AN Adapters & Hardware: Includes specific push-on EFI fittings (3/8-inch inlet/outlet and 5/16-inch return) along with a mounting bracket and rubber insulator
Engines: Fits 1999–2014 Chevy/GM small block V8 Gen III/IV engines including 4.8L (294ci), 5.3L (325ci), and 6.0L (364ci) variants (such as LS1, LS2, LS3, LM7, LQ4, and LQ9). 

Application: Specifically engineered for custom chassis or conversions requiring an external, frame-mounted pump setup rather than an in-tank module

VEHICLE FITMENT
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