Radium Fuel Rails, GM Vortec 8100 L18 Big Block

The Radium Engineering 20-0862 Fuel Rails is designed for: GM Vortec 8100 (L18) 8.1L big block.

The fuel rails are CNC machined from 6061 aluminum, black anodized, and laser etched for a high quality surface finish. Each fuel rail has six 8AN ORB ports, twelve ports in all.

There are 6 ports on each fuel rail (12 total). These ports are 3/4"-16 tapped for 8AN ORB fittings.

Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. Dimensional drawings are available from Coore on request to verify clearance.

Vehicle Fitment

• GM Vortec 8100 (L18) 8.1L big block

Available Part Numbers

• 20-0862 — Fuel Rails, GM Vortec 8100 L18 Big Block (this product)
• 20-1062 — Fuel Rail Plumbing Kit, GM Vortec 8100 L18 Big Block (2001-2003) (sold separately)
• 20-1162 — Fuel Rail Plumbing Kit, GM Vortec 8100 L18 Big Block (2004-2010) (sold separately)

Why Radium Engineering?

• ✔ Designed and manufactured in the USA
• ✔ CNC machined billet aluminium — precision fit, no compromise
• ✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
• ✔ Exclusively distributed in Australia by Coore

Genuine Radium Engineering product, supplied by Coore Australia. Confirm fitment with Coore before ordering. Professional installation recommended.

Browse more Radium Engineering parts at JDM Mods NQ