Radium Engineering Fuel Rail Plumbing Kit, GM Vortec 8100 L18 Big Block (2001-2003)

Radium Fuel Rail Plumbing Kit, GM Vortec 8100 L18 Big Block (2001-2003)

Application: GM Vortec 8100 (L18) 8.1L – 2001-2003 return-style fuel system, with Radium 20-0862 fuel rails
Part Type: Fuel rail plumbing kit
Part Number: 20-1062

The Radium 20-1062 Plumbing Kit provides the hardware for a plug-and-play installation of the Radium 20-0862 fuel rails on 2001-2003 Vortec 8100 vehicles with a return-style fuel system.

An SAE quick connect adapts to the OEM feed line and an 8AN crossover line routes around the rear of the engine to join both rails. A fuel pressure gauge and adjustable fuel pressure regulator mount directly to the LH rail, the OEM return SAE quick connector attaches to the regulator outlet, and 8AN ORB plugs are supplied for all unused ports.

Key Features

• Plug and Play: Year-specific kit for the 20-0862 rails
• Direct-Mount Regulator: Adjustable regulator mounts directly to the LH rail
• Pressure Gauge: 0-100 psi gauge for calibration
• OEM Connections: SAE adapters for the OEM feed and return lines
• Heat Protection: Thermal insulation sleeve included

What's Included

• 0-100 psi fuel pressure gauge
• Direct-mount adjustable fuel pressure regulator
• 5/32in vacuum hose
• 1/2in EFI hose
• Thermal insulation sleeve
• 8AN ORB to 1/8in NPT fitting
• 8AN ORB plug (x7)
• 8AN ORB to 8AN male fitting
• 1/8in NPT plug (x2)
• PushLok hose end (x2)
• 8AN ORB to 6AN ORB swivel union
• 6AN ORB to 5/16in SAE swivel
• 8AN ORB to 8AN male swivel
• 8AN ORB to 3/8in SAE swivel

Optional Parts

• Radium Fuel Rails, GM Vortec 8100 L18 Big Block (20-0862) – the fuel rails this kit is designed for (required)

Important Notes

• Requires Radium 20-0862 fuel rails (sold separately)
• For 2001-2003 return-style fuel systems only – 2004-2010 returnless vehicles use 20-1162
• Static fuel pressure target is 4 bar (58 psi) – set it with the regulator vacuum line disconnected and plugged, then re-check once the engine is warm
• Install all fittings to the rails before mounting them to the intake manifold
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• GM Vortec 8100 (L18) 8.1L – 2001-2003 model years (return-style fuel system)

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.