V/C Breather w/o Shield 1-3/8in

The V/C Breather w/o Shield 1-3/8in from Allstar Performance is a crucial component for engine builders and performance enthusiasts focused on optimizing crankcase ventilation. This breather assembly helps manage positive crankcase pressure, which is vital for maintaining engine reliability during high-RPM operation and extended track sessions. Proper breather management is essential to prevent excessive pressure that can compromise gaskets, seals, and overall engine longevity.

The shieldless design features a 1-3/8-inch diameter opening, engineered to accommodate standard hose connections commonly found on street and race engines. Its compact form factor, measuring 3.4 x 3.25 x 5.05 inches and weighing just 0.36 lbs, makes it ideal for tight engine compartments. The absence of a protective shield reduces restriction and simplifies installation while aiming to separate oil mist from intake air, which helps ensure cleaner air delivery to the carburetor or fuel injection system.

Mechanics and engine builders often specify Allstar Performance breathers for naturally aspirated and supercharged small-block applications, particularly in circle track, drag racing, and street rod environments. The 1-3/8-inch connector is compatible with standard breather hoses and pairs well with catch cans and air cleaners, making it a versatile choice for various performance applications.