Connecting rods STDX BMW M3 E30 S14B20 / 23/25 2.0 / 2.3 / 2.5L Inline4 Race Series ACL ACL-4B1568HX-STD

STDX bushings BMW M3 E30 S14B20 / 23/25 2.0 / 2.3 / 2.5L Inline4 Race Series ACL ACL Race bearings are designed to work in the most extreme conditions and the most demanding engines. The advanced technological process allows the bushing to adapt to the deformation occurring at high revolutions and helps in the formation of hydrodynamic oil films. other dimensions: STDXX -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)