Radium 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)

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.