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The COMP Cams moly‑coated roller thrust bearing for Chevrolet 396–454 big‑block engines is designed to eliminate wear at the front of the block and help set proper cam thrust clearance. The unique design measures 0.142" thick and provides a durable interface between gear and block, making it a direct replacement option when addressing front‑of‑block wear during rebuilds or timing set installation.
COMP Cams Thrust Bearing Big Block Chev
