Main bearings are a critical component to your VW or Audi performance engine build and responsible for keeping your engine together under increased loads and temperatures. ACL premium race bearings provide higher reliability and increased tensile strength through metallurgical engineering innovations. Heat dissipation and bearing retention is dramatically improved over factory style manufactured designs and provides reliable endurance in your performance engine.
Taking the premium ACL bearing a step further, Calico Coating's CT-1 Dry Film Lubricant coating is employed to further reduce friction and abrasive wear and extend the life of your bearing surfaces. Specially designed to withstand even the most extreme engine conditions, these bearings will provide excellent reliability on the street or track.
VW/Audi 4 Cylinder Calico Coated Main Bearing Sets include 6 bearings with oil grooves and 4 without. The #4 journal will receive the oil groove on both sides of the journal, the rest have a grooved bearing on the block side only.
For extreme applications where crankshaft or journal clearances may measure larger after machining, optional +.001 oversized bearings are available. Extreme care to verify proper clearances and measurements should be taken when installing any bearing.
Does not fit VW/Audi timing chain driven TSI (EA888 Gen 1/2/3) engines.