Nozzle Jet Brass 0.42 Each

The Nozzle Jet Brass 0.42 Each by ENDERLE is a precision fuel system component engineered for high-performance fuel injection applications in race engines and heavily modified street vehicles. This brass nozzle jet serves as a critical metering orifice in carbureted and mechanical fuel injection systems, controlling fuel flow rates to match engine displacement and fuel delivery demands. Whether you're tuning a vintage hot rod, competition drag car, or custom-built performance engine, selecting the correct jet size is essential for optimal air-fuel mixture and engine response.

Manufactured from corrosion-resistant brass, the ENDERLE nozzle jet features precision-drilled metering orifices designed to exacting tolerances that ensure consistent fuel atomization and distribution. The 0.42 sizing refers to the metering hole diameter in sixty-fourths of an inch, a standard specification across fuel injection tuning platforms. Brass construction resists ethanol fuel degradation and provides durability in high-temperature engine compartments while maintaining precise flow characteristics across varying fuel pressures and engine operating conditions. This individual jet allows tuners to fine-tune fuel curves without replacing entire fuel delivery assemblies.

Performance mechanics and engine builders rely on ENDERLE jets for carburetor and fuel injection calibration on engines ranging from small-block displacement builds to large-displacement big-blocks. Installation requires removing the fuel injection nozzle assembly and replacing the existing jet—a straightforward task for experienced technicians but one that demands precision since even minute size variations significantly impact engine tuning. This 0.42 jet is ideal for applications requiring moderate fuel flow increases or as part of a systematic jetting progression during engine break-in and dyno tuning sessions. Verify compatibility with your specific fuel delivery system and engine configuration before installation.