... precise boring and the surface treatment was coated with 3 element layer(copper-lead-tin) and then coverd ... with Tin.Main bearing, 14 pcs, OEM 6127-21- ... 1127GP), 4 pcs wide and 10 pcs narrow, half with hole/groove and half plain.Con rod bearing, 12 pcs. ... (Daido No.: R878K, NDC No.:CB-1127GP), half with hole/groove and half plain. main and con rod bearing ...