Main bearings 0.020 Holden 3.8L Ecotech ACL ACL-4M2299-020

Main bearings 0.020 Holden 3.8L Ecotech ACL ACL Race shells are designed to work in the most extreme conditions and the most strenuous engines.Due to many years of experience in the production of bearings, each set is perfectly matched to the engine. at high speed and helps in the formation of hydrodynamic oil films. This technology, combined with the advanced geometry of the bushings, makes them ideal for heavily stressed engines. 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 grinding)