Polished Aluminium Timing Chain Cover RPCR8422Polished Aluminium Timing Chain CoverFits B B Chev 396 454, Includes Cover, Seal, Gaskets & Bolts RPCR8422 CR8422 Replace your old, leaking and worn out stock timing cover with a brand new RPC unit! The heavy duty aluminium design is available in polished and black finishes. Kits include front main seal, gaskets and hardware. Fits 1966 90 BB Chevy MKI MKIV engines. Includes: Timing Chain Cover Gasket Water Pump Gaskets Timing Cover Crank Seal 10 x