STD main bearings Chevrolet 396, 402, 427, 454 V8 Race Series Tapered Coating CT-1 ACL ACL-5M829HNC-STD

STD main bearings Chevrolet 396, 402, 427, 454 V8 Race Series tapered coating CT-1 ACL ACL Race shells are designed to operate 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. 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)