Radium Engineering Fuel Rails - GM LS Engine

Radium Fuel Rails - GM LS Engine

Application: GM LS1, LS2, LS3, LS6, L76, L99
Part Type: Upgrade fuel rails
Part Number: 20-0232

These Radium upgrade fuel rails are manufactured with a large 0.69in (17.5mm) internal bore to support high engine power requirements. They are CNC machined from extruded 6063 aluminium, black anodised and laser etched, and are compatible with all fuel types including E85.

The end ports and lower centre ports are tapped 8AN ORB (3/4"-16 female), with the centre ports accepting optional adapters. Reversible billet mounting feet suit multiple LS engines by installing them in different threaded holes, and the 14mm ID injector bores allow factory injectors to be used.

Key Features

• Large Bore: 0.69in (17.5mm) internal bore
• 8AN ORB Ports: End and lower centre ports, 3/4"-16 female
• Reversible Mounting Feet: Billet feet suit multiple LS engines
• OEM Injector Bores: 14mm ID – factory injectors permitted
• Fuel Compatibility: All fuel types including E85

What's Included

• Black anodised, laser-etched aluminium fuel rails
• Black anodised aluminium mounting feet
• Stainless steel mounting hardware

Optional Parts

• Radium Fuel Rail Plumbing Kit, LS1 / LS2 / LS3 / LS6 / L76 / L99 (20-0232-PK) – bolt-on kit to reuse the OEM feed hose and SAE quick connector

Important Notes

• This is an upgrade rail, not a top feed conversion – OEM or OEM-equivalent injectors must be used (matching OEM injector height and upper/lower O-ring diameters and styles)
• Injector dimensions vary by engine – injectors must match the intake manifold (e.g. LS1 injectors with an LS1 manifold)
• Radium does not make injector recommendations – consult your tuner for brand and flow rate, and the injector manufacturer for a dimensionally correct part number
• Fittings, regulators, gauge adapters and pulse dampers are sold separately
• The LS7 uses a different Radium fuel rail
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• GM LS1
• GM LS2
• GM LS3
• GM LS6
• GM L76
• GM L99

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.