STDX main bearings Opel Z28NEL, Z28NET, Z32SE 2.8L Turbo, 3.2L V6 ACL ACL-4M2273HX-STD

Main bearings STDX Opel Z28NEL, Z28NET, Z32SE 2.8L Turbo, 3.2L V6 ACL ACL Race bearings are designed to work in the most extreme conditions and the most demanding engines. the technological process allows the bushing to adapt to the deformation occurring at high revolutions and helps in the formation of hydrodynamic oil films. -0.025 mm (looser than nominal) STDX +0.000 mm (nominal) +0.025 mm (tighter than nominal) +0.25 mm (first shaft grinding) +0.50 mm (second shaft grinding)