Radium Top Feed Conversion Fuel Rails, Subaru Alcyone SVX (EG33 H6)

The Radium Engineering 20-0763-02 Top Feed Conversion Fuel Rails convert the OEM side-feed fuel injector setup on the Subaru Alcyone SVX (EG33 H6) to a top-feed configuration — unlocking compatibility with a wide range of high-flow universal aftermarket fuel injectors. CNC machined from solid 6061 aluminium, black anodised, and laser engraved, these rails support all engine power requirements with a large internal bore and are compatible with all fuel types including E85.

The EG33 H6 engine features three injectors per bank. Each fuel rail has three 8AN ORB threaded ports (6 total) for maximum plumbing flexibility. The injector bores are 14mm ID.

Fuel Injector Compatibility

Do not purchase "WRX Fitment" injectors — these are not compatible. The EG33 requires injectors with specific O-ring dimensions. The following injectors are confirmed direct fits (others on the market may also work):

• Injector Dynamics ID1050-XDS-34-14-14
• Injector Dynamics ID1300-XDS-34-14-14
• Injector Dynamics ID1750-XDS-34-14-14
• Injector Dynamics ID2600-XDS-34-14-14

Injectors require: 34mm length, 14mm upper O-ring, 14mm lower O-ring. Fuel injectors not included.

Key Features

• Side-to-top feed conversion — enables high-flow universal aftermarket injector fitment
• 14mm ID injector bores — compatible with a wide range of universal top-feed injectors
• Large internal bore — supports all engine power requirements without flow restriction
• Three 8AN ORB ports per rail — 6 total, maximum plumbing flexibility
• CNC machined solid 6061 aluminium — black anodised and laser engraved
• E85 and alcohol fuel safe — compatible with all fuel types
• 26mm injector seats included — black anodised and laser etched, x6
• Black anodised fuel rail mounts included — x4

Kit Includes

• Black anodised, laser etched aluminium fuel rails (x2)
• Black anodised, laser etched 26mm injector seats (x6)
• Black anodised fuel rail mounts (x4)
• Stainless steel M6x1 fuel rail mount bolts (x8)
• Stainless steel M8x1.25 mounting bolts (x4)

Vehicle Fitment

• Subaru Alcyone SVX — EG33 H6 (all variants)

Available Part Numbers

• 20-0763-02 — Top Feed Conversion Fuel Rails, Subaru Alcyone SVX EG33 H6

Why Radium Engineering?

• ✔ Designed and manufactured in the USA
• ✔ CNC machined solid 6061 billet aluminium — black anodised, laser engraved
• ✔ Side-to-top feed conversion — unlocks the full aftermarket injector ecosystem
• ✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
• ✔ Exclusively distributed in Australia by Coore

Genuine Radium Engineering product. Stocked in Sydney for fast Australian delivery. Fuel injectors not included. Do not use WRX fitment injectors. Injectors must be 34mm length with 14mm upper and lower O-rings. Professional installation recommended.