STD main bearings Audi 1983-2001 A3, A4, A6, TT, 80, 90, 100, 1595-1781-1984cc Race Series ACL ACL-5M1644-STD

STD main bearings Audi 1983-2001 A3, A4, A6, TT, 80, 90, 100, 1595-1781-1984cc Race Series ACL ACL Race bearings are designed to operate in the most extreme conditions and the most demanding engines. the production of bushings, each set is perfectly matched to the engine. The advanced technological process allows the bushing to adjust to the deformations occurring at high revolutions and helps in the production of hydrodynamic oil films. Most bushings are also available in several other dimensions: STDX -0.025 mm (looser than nominal) STD +0.000 mm (nominal) +0.025 mm (tighter than nominal) +0.25 mm (first shaft grinding) +0.50 mm (second shaft cut)