602/604 Valve Cover Breathers ( SOLD AS INDIVIDUAL ) Our 604 carb spacer is

Our 604 carb spacer is specifically designed to work with the 604 intake

Compatible with most 4412XP carburetors

unlike most spacers in the racing industry we are used to

David Smith

The pathways inside the breather also allow for you to wash your racecar without ever having to take them off

602/604 Valve Cover Breathers ( SOLD AS INDIVIDUAL ) Our 604 carb spacer isThe common misconception about valve cover breathers, is the filter media used in your most common breathers is for filtering air into the engine. This is false. The motor experiences constant blow by, therefore, constant pressure is being emitted from the crank case. As your "filter" clogs up with oil & dirt during racing conditions, the rate at which the engine can relieve the constant pressure slows down. Increased crank case pressure puts pressure