Big Block Chevy Polished Aluminum Timing Cover - Gen 6 - Double Roller 

Big Block Chevy Polished Aluminum Timing Cover - Gen 6 Without Pump Drive Hole (Use Seal #300-16872) - Double Roller Compatible

These beautifully polished cast aluminum timing covers are perfect for any performance engine. Each cover is CNC machined to provide an excellent seal and their rigid construction assures your camshaft stays where it should. This model will fit Double Roller Timing Chains. Works with 7" or less harmonic balancers