Univ Smog Tube Fitting

The Universal Smog Tube Fitting by Racing Power Co-Packaged is a precision 90-degree air cleaner PCV (positive crankcase ventilation) fitting engineered for custom engine builds and emissions system modifications. This component serves as a critical junction point in crankcase ventilation networks, directing blow-by gases and vapors away from the engine block to meet both OEM specifications and custom tuning requirements. Mechanics and performance enthusiasts rely on this fitting when reconfiguring air intake systems, upgrading to aftermarket air cleaners, or fabricating custom engine bay layouts where standard factory routing won't accommodate modern performance setups.

Constructed from durable black plastic, this 90-degree fitting features a 3/4-inch hose barb connection point designed to accept standard automotive PCV hose with reliable, leak-free clamping. The 1.5-inch overall length and compact 3.7 x 1.8 x 8.5-inch package footprint allow installation in tight engine compartments without requiring extensive fabrication or rework. The 90-degree geometry eliminates sharp bends in hose runs, reducing restriction in airflow and minimizing kinking that degrades ventilation efficiency—a critical factor in maintaining proper crankcase pressure and preventing seal leakage under boost or high-RPM operation.

This universal smog tube fitting is ideal for street rod builders, LS engine swap projects, turbo and supercharger installations, and custom engine bay designs where factory PCV routing is incompatible with modern performance modifications. Installation requires only a hose clamp on the 3/4-inch barb and can be completed in minutes with basic hand tools. The plastic construction resists oil and fuel degradation while remaining lightweight, making it a practical choice for both budget-conscious builds and weight-sensitive performance applications where every fraction of a pound matters.