Radium Honda Fuel Rail B Series

All Honda B-series intake manifolds.

NOTE: This includes the B20B, B20B1, B20B2, B20B3, and B20B4. However, this fuel rail is NOT compatible with B20A, B20Z, and B21A variations.

Manufactured with a large internal bore, the fuel rail can support all necessary engine power requirements. They are CNC machined from 6061 aluminum, anodized, and laser etched for a high quality surface finish. Like the OEM fuel rails, the injector bores are 11mm ID so factory injectors, or any equivalent aftermarket injector, can be used. 

The fuel rail ports are tapped for 8AN ORB and 1/8 NPT. 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. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.