Fuel Rail Kit - For 300-137 GM LS Intake

The Fuel Rail Kit for 300-137 GM LS Intake by Holley is designed to enhance fuel distribution for LS engines, making it a vital upgrade for LS swap projects, conversions from carbureted to fuel injection, and high-performance modifications. This kit is perfect for those fabricating custom LS installations in classic muscle cars or optimizing fuel delivery in modern performance vehicles.

Constructed from precision-machined aluminum, this fuel rail kit meets Holley's high manufacturing standards, ensuring it can withstand the fuel pressure demands and resist corrosion and thermal stress typical in LS engine operations. It mounts directly to the 300-137 intake casting without requiring modifications, facilitating proper fuel line routing and eliminating the need for custom fabrication.

Engine builders, restoration shops, and enthusiasts undertaking LS conversions or upgrading carbureted engines will find this kit invaluable. It is compatible with any fuel system delivering 43–58 PSI through standard -6 AN fittings, ensuring balanced fuel distribution across all eight injector locations for optimal performance.